{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"EUL253429","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"nasir_al_din_al_tusi","item_category5":"not_balown","item_list_name":"search_results","item_name":"or_ms_27_tahir_uqlidus_ink_on_paper","item_variant":"undefined"},{"item_id":"LIP1044327","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"UIS5076188","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_instruments_18th_century_mathematical_instruments_1701","item_variant":"undefined"},{"item_id":"CH349944","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"swiss_school_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"titlepage_of_a_printed_edition_of_the_archimedes_palimpsest_editio_princeps_1544_print","item_variant":"undefined"},{"item_id":"UIS5076204","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_instruments_18th_century_mathematical_instruments_1701","item_variant":"undefined"},{"item_id":"BLT236733","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fourier_joseph_1768_1830","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_2044_page_from_calcul_differentiel_et_integral_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"UIS5076195","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_instruments_18th_century_mathematical_instruments_1701","item_variant":"undefined"},{"item_id":"SIC954642","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_model","item_variant":"undefined"},{"item_id":"SIC954640","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_model","item_variant":"undefined"},{"item_id":"SIC954643","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_models","item_variant":"undefined"},{"item_id":"SIC954641","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_model","item_variant":"undefined"},{"item_id":"XIR184028","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"mesopotamian","item_category5":"balown","item_list_name":"search_results","item_name":"tablet_with_fourteen_lines_of_a_mathematical_text_in_cuneiform_script_and_a_geometric_design_stone","item_variant":"undefined"},{"item_id":"CHT157351","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"greek_school_12th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_of_text_with_geometrical_figures_from_elements_by_euclid_3rd_century_bc_vellum","item_variant":"undefined"},{"item_id":"ACD173234","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_louis_victor_pierre_raymond_de_broglie_1892_1987_writing_his_famous_formula_on_a_blackbo","item_variant":"undefined"},{"item_id":"XIR226108","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"mathematics_lesson_from_a_mathematical_treatise_w_c_on_paper","item_variant":"undefined"},{"item_id":"UIG2626694","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"islamic_school_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"illustration_depicting_mathematical_charts_from_1538_edition_of_aja_ib_al_makhluqat_wa_ghara_ib_al_m","item_variant":"undefined"},{"item_id":"UIS5076190","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_instruments_18th_century_set_of_mathematical_instruments_c_1701","item_variant":"undefined"},{"item_id":"BMR236737","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_tree_of_proportions_from_summa_de_arithmetica_printed_by_paganino_di_padanini_toscalano_1523_pri","item_variant":"undefined"},{"item_id":"BLT236736","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fresnel_augustin_jean_1788_1827","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_3412_page_of_experimental_notes_1823_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"UIS5076744","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_models_18th_century_mathematical_models_early_to_mid_18th_century","item_variant":"undefined"},{"item_id":"UIS5076809","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_books_tables_pre_1900_a_book_of_mathematical_tables_by_wiberg_1876","item_variant":"undefined"},{"item_id":"UIS5076755","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_books_and_tables_pre_1900_book_of_vega_s_mathematical_tables_1794","item_variant":"undefined"},{"item_id":"BLT236735","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"gallois_evariste_1811_32","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_2108_fol_11r_letter_from_gallois_to_auguste_chevalier_29th_may_1832_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"TML155623","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"christ_s_hospital_school_badge_metal","item_variant":"undefined"},{"item_id":"UIS5076745","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_books_tables_pre_1900_book_of_vega_s_mathematical_tables_1794","item_variant":"undefined"},{"item_id":"CHT235329","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_geometry_study_after_sebastien_le_clerc_1717_coloured_engraving","item_variant":"undefined"},{"item_id":"DGC696761","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"roman_3rd_century_ad","item_category5":"not_balown","item_list_name":"search_results","item_name":"detail_of_a_solomon_s_knot_motif_house_of_theseus_paphos_cyprus_mosaic","item_variant":"undefined"},{"item_id":"BMR218725","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"austrian_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"geometric_shapes_from_harmonices_mundi_by_johannes_kepler_1571_1630_published_in_linz_1619_engraving","item_variant":"undefined"},{"item_id":"LIP1060577","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LIP1059454","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LLM3656059","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ancient_mathematical_teachers_engraving","item_variant":"undefined"},{"item_id":"RCL406393","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"campbell_rebecca","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_domestication_of_nature_2004_oil_on_panel","item_variant":"undefined"},{"item_id":"UIS5070455","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_instruments_18th_century_mathematical_sector_compas_de_proportion_1700_1738","item_variant":"undefined"},{"item_id":"LIP1045232","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LIP1058717","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LIP1047363","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LIP1054886","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"HGP374005","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"neil_holmes","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_mathematical_bridge_cambridge_photo","item_variant":"undefined"},{"item_id":"UIS5076438","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_models_klein_bottle","item_variant":"undefined"},{"item_id":"PVD1682568","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist","item_category5":"not_balown","item_list_name":"search_results","item_name":"sir_william_thomson_1824_1907_aka_lord_kelvin_mathematical_physicist_and_engineer_who_did_important_","item_variant":"undefined"},{"item_id":"LIP1045529","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"BAL44937","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"danfrie_philippe_c_1532_1606","item_category5":"not_balown","item_list_name":"search_results","item_name":"trigonometer_c_1580_brass","item_variant":"undefined"},{"item_id":"UIS5076014","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_instruments_18th_century_set_of_mathematical_instruments_by_george_adams_mid_18th_centu","item_variant":"undefined"},{"item_id":"UIS5076817","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_books_tables_pre_1900_tables_from_a_book_of_mathematical_tables_by_wiberg_1876","item_variant":"undefined"},{"item_id":"TRK879441","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"circumference_of_the_earth_leonardo_da_vinci_1452_1519_developed_a_novel_way_to_measure_the_area_of_","item_variant":"undefined"},{"item_id":"BNM57789","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"kerseboom_johann_fl_c_1680_d_1708","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_sir_robert_worsley_bart_of_appueldurcombe","item_variant":"undefined"},{"item_id":"LIP1037614","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LIP1040959","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"LIP1049933","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_engraving","item_variant":"undefined"},{"item_id":"UIS5076844","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_drawings_da_vincios_dodecahedron_1509","item_variant":"undefined"},{"item_id":"UIS5621905","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_models_20th_century_impossible_staircase_1950s","item_variant":"undefined"},{"item_id":"XKH156476","item_category":"object","item_category2":"in_copyright","item_category3":"standard","item_category4":"merz_mario_1925_2003","item_category5":"balown","item_list_name":"search_results","item_name":"1_1_2_1971_mixed_media","item_variant":"undefined"},{"item_id":"FGL1065914","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"james_clerk_maxwell_coloured_photo","item_variant":"undefined"},{"item_id":"BLT236732","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"galois_evariste_1811_32","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_2108_proposition_i_from_memoire_sur_les_conditions_de_resolubilite_des_equations_par_radicaux_173","item_variant":"undefined"},{"item_id":"TRK3025064","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sumer_mesopotamia_school_mathematical_tablets_clay","item_variant":"undefined"},{"item_id":"UIS5076886","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mathematical_drawings_da_vincios_octahedron_1509","item_variant":"undefined"},{"item_id":"ELS9061089","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category4":"lessing_erich","item_category5":"not_balown","item_list_name":"search_results","item_name":"la_pascaline_calculating_machine_constructed_by_blaise_pascal_and_technical_drawings_musee_des_arts_","item_variant":"undefined"},{"item_id":"HUM351604","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"korean_school","item_category5":"not_balown","item_list_name":"search_results","item_name":"counting_sticks_joseon_dynasty_wood","item_variant":"undefined"},{"item_id":"XKH158720","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_typewriter_ink_and_crayon_on_paper","item_variant":"undefined"},{"item_id":"CHT172431","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"poster_advertising_an_appearance_of_jacques_inaudi_1867_1939_at_the_theatre_robert_houdin_paris_1878","item_variant":"undefined"},{"item_id":"XIR162305","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"floris_frans_the_elder_c_1519_70_after","item_category5":"balown","item_list_name":"search_results","item_name":"geometry_engraved_by_hieronymus_cock_c_1510_70_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"LIP1045234","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"miss_charlotte_angas_scott_of_girton_college_engraving","item_variant":"undefined"},{"item_id":"IBE5390391","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"tablet_with_a_mathematical_text_art_of_babylon","item_variant":"undefined"},{"item_id":"NUM166697","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_12th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_235_f_32_33_geometry_from_a_traite_d_astronomie_vellum","item_variant":"undefined"},{"item_id":"ONT996051","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"borduas_paul_emile_1905_60","item_category5":"not_balown","item_list_name":"search_results","item_name":"3_3_2_1956_oil_on_canvas","item_variant":"undefined"},{"item_id":"BLT236734","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_355_fol_18_intersection_of_surfaces_from_geometrie_descriptive_by_gaspard_monge_1746_1818_1814_en","item_variant":"undefined"},{"item_id":"UIG673332","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"19th_century_mathematical_instrument_maker","item_variant":"undefined"},{"item_id":"LLM3092809","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_from_the_architect_s_surveyor_s_and_engineer_s_compendium_1892_engraving","item_variant":"undefined"},{"item_id":"XKH158597","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"LAL319627","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"teaching_algebra","item_variant":"undefined"},{"item_id":"LLM6004992","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"chaldaean_system_of_numerals_litho","item_variant":"undefined"},{"item_id":"LIP1052481","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_cambridge_mathematical_tripos_1871_engraving","item_variant":"undefined"},{"item_id":"TRK3025063","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sumer_mesopotamia_right_school_tablet_sumerian_words_the_exercise_was_probably_corrected_by_a_teache","item_variant":"undefined"},{"item_id":"XJF119899","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"borcht_hendrik_van_der_the_younger_1614_c_1698_after","item_category5":"balown","item_list_name":"search_results","item_name":"elias_allen_c_1588_1653_engraved_by_wencelaus_hollar_1607_77_engraving","item_variant":"undefined"},{"item_id":"BAL116092","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"egyptian_second_intermediate_period_c_1750_c_1650_bc","item_category5":"not_balown","item_list_name":"search_results","item_name":"detail_of_the_rhind_mathematical_papyrus_hyksos_period_15th_dynasty_c_1550_bc_papyrus_see_also_9712","item_variant":"undefined"},{"item_id":"XKH158702","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"XKH158598","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"XKH158590","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_mixed_media_on_paper","item_variant":"undefined"},{"item_id":"XKH158593","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_mixed_media_on_paper","item_variant":"undefined"},{"item_id":"XKH158594","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_mixed_media_on_paper","item_variant":"undefined"},{"item_id":"MEP2336438","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"notes_taken_by_enrico_fermi","item_variant":"undefined"},{"item_id":"XKH158704","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"XKH158703","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"CH477915","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"title_page_of_la_geometrie_by_rene_descartes_1664_engraving_print","item_variant":"undefined"},{"item_id":"BAL136317","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"frontispiece_to_volume_i_of_the_mathematical_principles_of_natural_philosophy_by_sir_isaac_newton_16","item_variant":"undefined"},{"item_id":"XKH158700","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"CWA123962","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"leslie_charles_robert_1794_1859_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"sir_isaac_newton_1642_1727_engraving_see_also_36013","item_variant":"undefined"},{"item_id":"XJF173283","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"durer_or_duerer_albrecht_1471_1528_after","item_category5":"balown","item_list_name":"search_results","item_name":"instrument_of_mathematical_precision_for_designing_objects_in_perspective_1530_engraving","item_variant":"undefined"},{"item_id":"XKH158599","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_pen_pencil_and_ink_on_paper","item_variant":"undefined"},{"item_id":"XKH158591","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"darboven_hanne_1941_2009","item_category5":"balown","item_list_name":"search_results","item_name":"untitled_work_from_kleine_konstruktion_new_york_1966_68_mixed_media_on_paper","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"mathematical","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":1347,"search_results_page_number":1}