{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"XTD82558","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"mexican_school","item_category5":"balown","item_list_name":"search_results","item_name":"copy_of_a_fragment_of_the_dresden_codex_showing_mayan_astronomical_calculations_engraving","item_variant":"undefined"},{"item_id":"CHT162794","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"reisch_gregor_d_1525","item_category5":"not_balown","item_list_name":"search_results","item_name":"allegory_of_arithmetic_from_margarita_philosophica_by_gregor_reisch_1503_woodcut","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":"TRK7133634","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"trigonometric_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133628","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"different_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133619","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"optics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133616","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"fluid_dynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"CJP107574","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"wyatt_benjamin_dean_1775_1850","item_category5":"not_balown","item_list_name":"search_results","item_name":"design_for_the_duke_of_york_s_column_london_pen_ink_and_w_c_on_paper","item_variant":"undefined"},{"item_id":"CH15834","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"studies_of_the_illumination_of_the_moon_fol_1r_from_codex_leicester_c_1506_08_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"TRK7133615","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"fluid_dynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133618","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"hydrodynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133633","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"architectural_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133613","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"dynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133626","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"astronomy_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133617","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"fluid_dynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133641","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"trigonometric_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133611","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"dynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133624","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"astronomy_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133614","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"hydrodynamics_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133622","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"astronomy_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133612","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"dynamics_calculations_1779_engraving","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":"LIP1614686","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":"m_jacques_inaudi_engraving","item_variant":"undefined"},{"item_id":"XOS847282","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"caron_antoine_1520_99","item_category5":"balown","item_list_name":"search_results","item_name":"dionysius_the_areopagite_converting_the_pagan_philosophers_1570s_oil_on_panel","item_variant":"undefined"},{"item_id":"ACD236326","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fizeau_armand_hippolyte_louis_1819_96","item_category5":"not_balown","item_list_name":"search_results","item_name":"letter_describing_fizeau_s_experiments_to_determine_the_velocity_of_light_1849_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"TRK7133621","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"figures_with_different_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"BL3290194","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"horologium_and_easter_computations_on_the_fingers_of_a_hand","item_variant":"undefined"},{"item_id":"TRK7133625","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"figures_with_different_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133607","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_with_algebraic_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133609","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_with_algebraic_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"ACD236327","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fizeau_armand_hippolyte_louis_1819_96","item_category5":"not_balown","item_list_name":"search_results","item_name":"letter_describing_fizeau_s_experiments_to_determine_the_velocity_of_light_1849_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"TRK7133605","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_with_algebraic_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133610","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_with_trigonometric_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133627","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"physical_astronomy_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"TRK7133620","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"figures_with_different_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"LLM3653644","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":"napier_s_bones_or_rods_engraving","item_variant":"undefined"},{"item_id":"ACD236328","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fizeau_armand_hippolyte_louis_1819_96","item_category5":"not_balown","item_list_name":"search_results","item_name":"letter_describing_fizeau_s_experiments_to_determine_the_velocity_of_light_1849_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"CUL4911848","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"spain_alcaniz_calatrava_castle_castle_convent_of_the_order_of_calatrava_12th_13th_cs_presently_housi","item_variant":"undefined"},{"item_id":"TRK7133608","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_with_conic_section_calculations_1779_engraving","item_variant":"undefined"},{"item_id":"ROC5674273","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"studies_of_the_valves_of_the_heart_and_sketch_of_a_suditary_and_calculations_c_1511_13_pen_ink_on_bl","item_variant":"undefined"},{"item_id":"CH3502590","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"adams_george_1750_95","item_category5":"not_balown","item_list_name":"search_results","item_name":"gunners_rule_brass_see_also_3502589","item_variant":"undefined"},{"item_id":"RAF53250","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lazzari_sebastiano_fl_c_1770","item_category5":"not_balown","item_list_name":"search_results","item_name":"trompe_l_oeil_with_still_life_of_strawberries_and_a_parrot","item_variant":"undefined"},{"item_id":"GG80845","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"flemish_school_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_a_scholar_possibly_a_mathematician_aged_36_panel","item_variant":"undefined"},{"item_id":"STC444658","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"solvyns_franz_balthazar_1760_1824_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_dyback_or_astrologer_from_costumes_of_india_by_e_orme_1804_coloured_etching","item_variant":"undefined"},{"item_id":"CH3502591","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":"gunners_rule_brass_see_also_3502592","item_variant":"undefined"},{"item_id":"GIA4792133","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_astronomer_doing_calculations_using_a_sextant_during_an_eclipse_engraving_of_the_16th_century","item_variant":"undefined"},{"item_id":"CH3502589","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"adams_george_1750_95","item_category5":"not_balown","item_list_name":"search_results","item_name":"gunners_rule_brass_see_also_3502590","item_variant":"undefined"},{"item_id":"CH3502592","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":"gunners_rule_brass_see_also_3502591","item_variant":"undefined"},{"item_id":"LRI4672478","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"le_cat_claude_nicolas_1700_1768","item_category5":"not_balown","item_list_name":"search_results","item_name":"instruments_for_extracting_bladder_calculations_forceps_and_lithotritor_photography","item_variant":"undefined"},{"item_id":"CHT176311","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"antoniadi_eugene_michel_19th_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"maps_of_the_planet_mars_astronomical_observations_made_by_antoniadi_at_the_observatoire_de_juvisy_un","item_variant":"undefined"},{"item_id":"ATH2656923","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"copley_john_singleton_1738_1815","item_category5":"not_balown","item_list_name":"search_results","item_name":"study_for_lord_north_1779_80_chalk_on_paper","item_variant":"undefined"},{"item_id":"AVE8905675","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"1960s_technician_making_calculations_with_a_circular_slide_rule","item_variant":"undefined"},{"item_id":"AVE8905674","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"1960s_circular_slide_rule_being_used_to_make_calculations","item_variant":"undefined"},{"item_id":"LRI4623633","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"greek_astronomer_claudius_ptolemy_using_a_compass_to_make_calculations_miniature","item_variant":"undefined"},{"item_id":"CHT248210","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":"frontispiece_of_le_grand_banquier_de_france_ou_le_livre_des_monnaies_etrangeres_by_bertrand_francois","item_variant":"undefined"},{"item_id":"AVE6319870","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"united_states_1970s_man_writes_calculations_on_board","item_variant":"undefined"},{"item_id":"EPL6959724","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mortar_calculations_fort_wright_fishers_island_new_york","item_variant":"undefined"},{"item_id":"MEB859502","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"sangallo_antonio_da_the_younger_1483_1546","item_category5":"not_balown","item_list_name":"search_results","item_name":"plan_design_layout_of_an_obelisk_in_piazza_del_popolo_rome_1519_pen_on_paper","item_variant":"undefined"},{"item_id":"MEB859501","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"sangallo_antonio_da_the_younger_1483_1546","item_category5":"not_balown","item_list_name":"search_results","item_name":"ideal_reconstruction_of_the_augustan_obelisk_in_rome_1519_dark_brown_ink_on_paper","item_variant":"undefined"},{"item_id":"LLM5210391","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":"calculs_des_rains_mecanisme_de_la_colique_nephretique_colour_litho","item_variant":"undefined"},{"item_id":"LLM5210393","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":"calculs_biliaires_mecanisme_de_la_colique_hepatique_colour_litho","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":"TRK7291298","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lemaitre_augustin_francois_1797_1870","item_category5":"not_balown","item_list_name":"search_results","item_name":"russian_merchant_makes_calculations_by_means_of_an_abacus_engraving_19th_century","item_variant":"undefined"},{"item_id":"XIR95894","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"calculating_machine_invented_by_blaise_pascal_1623_62_wood_metal","item_variant":"undefined"},{"item_id":"MEV5049545","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_9th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"argumenta_paschalia_by_dionysius_exiguus_c_497_545_801_20_parchment","item_variant":"undefined"},{"item_id":"KWE7239636","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"yoshitora_utagawa_1836_80","item_category5":"not_balown","item_list_name":"search_results","item_name":"two_chinese_men_with_an_abacus","item_variant":"undefined"},{"item_id":"CHT223767","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"reisch_gregor_d_1525","item_category5":"not_balown","item_list_name":"search_results","item_name":"allegory_of_astronomy_from_an_edition_of_margarita_philosophica_by_gregor_reisch_published_in_basel_","item_variant":"undefined"},{"item_id":"ROC8598606","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"calculations_with_architectural_engineering_and_geometric_sketches_c_1492_94_pen_ink_with_black_chal","item_variant":"undefined"},{"item_id":"UIG547284","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"india_jaipur_jantar_mantar_built_for_astronomical_calculations_by_maharajah_of_jaipur","item_variant":"undefined"},{"item_id":"PNP377477","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school","item_category5":"not_balown","item_list_name":"search_results","item_name":"theodore_de_bry_litho","item_variant":"undefined"},{"item_id":"JAN1078178","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"annett_jeremy","item_category5":"not_balown","item_list_name":"search_results","item_name":"variations_29a","item_variant":"undefined"},{"item_id":"MEV5049620","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_14th_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_from_14th_15th_century_edition_of_geography_by_claudius_ptolemy_c_100_c_170_ad_pen_ink","item_variant":"undefined"},{"item_id":"XJF311618","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school","item_category5":"balown","item_list_name":"search_results","item_name":"technical_drawings_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"XYL155434","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"turkish_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"takyuddin_and_other_astronomers_at_the_galata_observatory_founded_in_1557_by_sultan_suleyman_from_th","item_variant":"undefined"},{"item_id":"SZT9227145","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"joachim_krack","item_category5":"not_balown","item_list_name":"search_results","item_name":"two_girls_with_an_abacus_in_guestrow_circa_the_1930s_photo","item_variant":"undefined"},{"item_id":"DPA7391280","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category4":"schoening","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_mechanism_for_antikythera_205_bc_bronze","item_variant":"undefined"},{"item_id":"CH469081","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"tinguely_jean_1925_91","item_category5":"not_balown","item_list_name":"search_results","item_name":"untitled_letter_to_felix_leu_1966_felt_tip_pen_crayon_on_paper","item_variant":"undefined"},{"item_id":"BL3264129","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"arundel_263_f_220v_f_221_notes_mathematical_calculations_from_codex_arundel_pen_ink_on_paper","item_variant":"undefined"},{"item_id":"BL6335279","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":"volume_iv_loose_papers_of_mathematical_calculations_and_annotations_by_thomas_harriott_add_ms_6785_f","item_variant":"undefined"},{"item_id":"ROC6166217","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinci_leonardo_da_1452_1519","item_category5":"not_balown","item_list_name":"search_results","item_name":"recto_studies_of_geometry_calculations_and_notes_c_1508_10_pen_ink_on_paper_recto_of_6166218","item_variant":"undefined"},{"item_id":"DUV4199378","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"jean_duvallon","item_category5":"not_balown","item_list_name":"search_results","item_name":"letter_c_school_making_mathematical_mental_calculation_on_a_slate_c_1885_epinal_print","item_variant":"undefined"},{"item_id":"EVB2938228","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"calculating_machine_designed_by_french_mathematician_blaise_pascal_in_1642_when_he_was_nineteen_year","item_variant":"undefined"},{"item_id":"LLJ583814","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":"who_wants_any_petty_calculations_fit_for_any_young_man_just_setting_up_in_business_coloured_engravin","item_variant":"undefined"},{"item_id":"LUX4725896","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"france_humorous_fantasy_map_showing_a_black_woman_cook_doing_her_calculations_1902","item_variant":"undefined"},{"item_id":"BL6335278","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":"volume_iv_loose_papers_of_mathematical_calculations_and_annotations_by_thomas_harriott_add_ms_6785_f","item_variant":"undefined"},{"item_id":"CUL4913846","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"france_normandy_seine_maritime_saint_valerie_en_caux_sea_cliffs_architecture_photography","item_variant":"undefined"},{"item_id":"BAL267604","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"holbein_the_younger_hans_1497_8_1543","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_ambassadors_detail_1533_oil_on_oak","item_variant":"undefined"},{"item_id":"UIG539872","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"gemma_phrysius_or_frisius_1508_1555_dutch_mathematician_holding_an_adjustable_ring_dial_for_determin","item_variant":"undefined"},{"item_id":"FIA7391262","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_antikythera_mechanism_205_bc_bronze","item_variant":"undefined"},{"item_id":"GAN400862","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"green_anthony_b_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"pages_from_a_sketchbook_working_drawing_the_bureau_ii_afternoon_sun_2010_pencil_on_paper","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"calcoli","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":332,"search_results_page_number":1}