{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"LTT7239167","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_instruments_1920s","item_variant":"undefined"},{"item_id":"CHT223763","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_astronomical_instruments_of_georg_christoph_eimmart_1638_1705_illustration_from_epistola_euchari","item_variant":"undefined"},{"item_id":"STC105248","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dutch_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"frontispiece_to_china_illustrated_by_athanasius_kircher_1601_80_1667_engraving","item_variant":"undefined"},{"item_id":"UIG5311766","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"microscope_by_adams_of_london","item_variant":"undefined"},{"item_id":"BL53373","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"or_3222_f_105_nasireddin_s_observatory_at_merega_astrolabes_and_other_instruments_persian","item_variant":"undefined"},{"item_id":"LIP1602164","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":"scientific_conversazione_at_apothecaries_hall_engraving","item_variant":"undefined"},{"item_id":"UIG5311760","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"three_pillar_microscope","item_variant":"undefined"},{"item_id":"UIG5311762","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"compound_microscope","item_variant":"undefined"},{"item_id":"BL3279613","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"astronomical_instruments_at_the_beijing_observatory","item_variant":"undefined"},{"item_id":"LAL278852","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"rainer_paul_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"sir_isaac_newton_gouache_on_paper","item_variant":"undefined"},{"item_id":"TEP445946","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"heath_wing_of_london_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"astronomical_telescope_c_1765_brass_glass","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":"LIP1587704","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":"scientific_balloon_ascent_from_the_crystal_palace_wednesday_30_july_engraving","item_variant":"undefined"},{"item_id":"LIP1613344","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":"electro_ballistic_apparatus_for_measuring_the_speed_of_cannon_shot_engraving","item_variant":"undefined"},{"item_id":"FAF269041","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"hall_dedicated_to_the_history_of_scientific_instruments_photo","item_variant":"undefined"},{"item_id":"STC310995","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"emslie_john_1813_75","item_category5":"not_balown","item_list_name":"search_results","item_name":"acoustics_illustrations_of_natural_philosophy_published_in_popular_diagrams_by_james_reynolds_london","item_variant":"undefined"},{"item_id":"XJF250762","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school","item_category5":"balown","item_list_name":"search_results","item_name":"astronomical_instruments_engraving","item_variant":"undefined"},{"item_id":"UDK844161","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"side_view_of_a_microscope_with_red_and_black_wires","item_variant":"undefined"},{"item_id":"KWE2603402","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_theodolite_and_other_surveryor_s_instruments_engraving","item_variant":"undefined"},{"item_id":"UDK844636","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"newton_meters_held_at_an_angle_with_1_kg_weight_showing_resultant_force_of_10_newtons","item_variant":"undefined"},{"item_id":"XJF359057","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"giovanni_domenico_cassini_engraving","item_variant":"undefined"},{"item_id":"XIR172240","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_father_ferdinand_verbiest_w_c_on_paper","item_variant":"undefined"},{"item_id":"LLM2802549","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"hans_lippershey_chromolitho","item_variant":"undefined"},{"item_id":"XJF133926","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"scientific_instruments_by_bedetti_engraved_by_gaetano_guadagnini_1800_1860_engraving","item_variant":"undefined"},{"item_id":"BL3276769","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"illustrated_front_page_containing_advertisements_for_scientific_instruments","item_variant":"undefined"},{"item_id":"UIG3525112","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"various_surveying_and_engineering_instruments","item_variant":"undefined"},{"item_id":"LAL2816457","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":"joseph_lister_showing_microbes_on_unwashed_surgical_instruments_colour_litho","item_variant":"undefined"},{"item_id":"MAJ5030670","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"giorgio_majno","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_instruments_three_planetary_systems_french_1820_1830","item_variant":"undefined"},{"item_id":"NBN8715869","item_category":"photo","item_category2":"in_copyright","item_category3":"premium","item_category4":"benn_nathan","item_category5":"not_balown","item_list_name":"search_results","item_name":"antique_shop_sells_clocks_and_scientific_instruments_1986_photo","item_variant":"undefined"},{"item_id":"UDK844620","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"deflecting_electrons_straight_cathode_ray_in_tube","item_variant":"undefined"},{"item_id":"LIP1602216","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":"arago_the_astronomer_engraving","item_variant":"undefined"},{"item_id":"UDK844585","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"above_view_of_a_magnetic_compass_the_needle_always_points_north_and_south_because_of_the_earth_s_mag","item_variant":"undefined"},{"item_id":"UDK844667","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"resistance_test_battery_resistor_and_ammeter","item_variant":"undefined"},{"item_id":"UDK844579","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"newton_meter_pulled_by_weight_immersed_in_water_with_scales_showing_upthrust","item_variant":"undefined"},{"item_id":"STC312825","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"emslie_john_1813_75","item_category5":"not_balown","item_list_name":"search_results","item_name":"hydraulics_illustrations_of_natural_philosophy_published_in_popular_diagrams_by_james_reynolds_londo","item_variant":"undefined"},{"item_id":"UIS5063980","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_a_gentleman_in_his_study_with_scientific_instruments_c_1750","item_variant":"undefined"},{"item_id":"XJF133927","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dotti_giovanni_battista_d_1732_after","item_category5":"balown","item_list_name":"search_results","item_name":"scientific_instruments_engraved_by_gaetano_guadagnini_1800_60_engraving","item_variant":"undefined"},{"item_id":"UDK844581","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"apparatus_to_measure_pressure_with_foot_pump_showing_boyle_s_law_the_volume_of_mass_of_gas_at_a_fixe","item_variant":"undefined"},{"item_id":"LIP1602503","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":"historical_treasures_in_the_loan_collection_of_scientific_apparatus_south_kensington_engraving","item_variant":"undefined"},{"item_id":"UDK844618","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"light_experiment_using_convex_mirror_reflecting_the_light_outwards","item_variant":"undefined"},{"item_id":"STC3258445","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"hollar_wenceslaus_1607_77","item_category5":"not_balown","item_list_name":"search_results","item_name":"frontispiece_of_the_history_of_the_royal_society_of_london_by_thomas_spratt_pub_1702_engraving","item_variant":"undefined"},{"item_id":"LLM2782007","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":"astronomical_instruments_engraving","item_variant":"undefined"},{"item_id":"UDK844582","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_apparatus_used_in_pressure_experiment_to_show_charlies_law_the_volume_of_a_mass_of_gas_at","item_variant":"undefined"},{"item_id":"HST1075594","item_category":"photo","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"moholy_nagy_laszlo_1895_1946","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_light_space_modulator_1922_30_gelatin_silver_print","item_variant":"undefined"},{"item_id":"JLJ4596527","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_16th_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_instruments_solar_dials_of_the_16th_century_and_the_17th_century_photo","item_variant":"undefined"},{"item_id":"MAJ5030638","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"giorgio_majno","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_instruments_celestial_globe_decorating_by_hand_holland_17th_century","item_variant":"undefined"},{"item_id":"LLM2802485","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_from_webster_s_complete_dictionary_george_bell_1877_engraving","item_variant":"undefined"},{"item_id":"FLO5324587","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"instruments_of_meteorology","item_variant":"undefined"},{"item_id":"NRM332110","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"williams_thomas_richard_1825_71","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_a_scientist_daguerreotype","item_variant":"undefined"},{"item_id":"UDK844586","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"electrical_circuit_with_ammeter_and_voltmeter_illutrating_ohm_s_law_a_thin_wire_has_a_resistance_to_","item_variant":"undefined"},{"item_id":"BAL5517","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"books_on_charles_darwin_s_desk","item_variant":"undefined"},{"item_id":"LLM5998508","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":"an_abc_of_statistics_engraving","item_variant":"undefined"},{"item_id":"BAT254073","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"parigi_giulio_1571_1635","item_category5":"not_balown","item_list_name":"search_results","item_name":"ceiling_panel_from_the_stanzino_delle_matematiche_fresco_with_tempera_see_254070_and_254072_3","item_variant":"undefined"},{"item_id":"XCF701479","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"navigational_instruments_photo","item_variant":"undefined"},{"item_id":"LLM2802486","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"page_from_webster_s_complete_dictionary_george_bell_1877_engraving","item_variant":"undefined"},{"item_id":"LLM459506","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"armet_portanell_jose_1843_1911","item_category5":"not_balown","item_list_name":"search_results","item_name":"lazzaro_spallanzani_observing_an_eruption_of_mount_etna","item_variant":"undefined"},{"item_id":"UIG3525116","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_early_plane_table_and_other_surveying_instruments","item_variant":"undefined"},{"item_id":"STC99282","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"evelyn_john_1620_1706_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_ii_1630_85_as_patron_of_the_royal_society_engraved_by_wenceslaus_hollar_1607_77_1667_engravi","item_variant":"undefined"},{"item_id":"UDK844486","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_binocular_microscope","item_variant":"undefined"},{"item_id":"XJF745420","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_18th_century","item_category5":"balown","item_list_name":"search_results","item_name":"illustration_of_astronomy_c_1771_engraving","item_variant":"undefined"},{"item_id":"LLE815875","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":"benjamin_martin_copper_engraving","item_variant":"undefined"},{"item_id":"XJF294060","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"marshall_william_fl_1617_49","item_category5":"balown","item_list_name":"search_results","item_name":"frontispiece_to_a_discourse_concerning_a_new_world_and_another_planet_by_john_wilkins_published_in_1","item_variant":"undefined"},{"item_id":"LLH6030715","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"belgian_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"advertisement_for_jacques_barboni_optical_instruments_litho","item_variant":"undefined"},{"item_id":"BRA1128570","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":"abraham_sharp_oil_on_canvas","item_variant":"undefined"},{"item_id":"XJF498322","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vinne_vincent_laurensz_van_der_1629_1702","item_category5":"balown","item_list_name":"search_results","item_name":"navigation_c_1670_90_pen_and_ink_and_graphite_on_paper","item_variant":"undefined"},{"item_id":"XJF359054","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dutch_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"johann_adam_schall_von_bell_from_china_illustrata_by_athanasius_kircher_1667_engraving","item_variant":"undefined"},{"item_id":"BAT254071","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"parigi_giulio_1571_1635","item_category5":"not_balown","item_list_name":"search_results","item_name":"ceiling_panel_from_the_stanzino_delle_matematiche_fresco_with_tempera_see_254070_and_254072_3","item_variant":"undefined"},{"item_id":"LLJ610451","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":"thomas_ripley_co_trade_card_engraving","item_variant":"undefined"},{"item_id":"LLH6032041","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"lancets_colour_litho","item_variant":"undefined"},{"item_id":"XIR223855","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_18th_century","item_category5":"balown","item_list_name":"search_results","item_name":"box_of_anatomical_instruments_wood_metal","item_variant":"undefined"},{"item_id":"XJF359055","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century_after","item_category5":"balown","item_list_name":"search_results","item_name":"ferdinand_verbiest_engraving","item_variant":"undefined"},{"item_id":"LLM2782008","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":"astronomical_instruments_engraving","item_variant":"undefined"},{"item_id":"NRM260956","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":"portrait_of_a_gentleman_in_his_study_with_scientific_instruments_c_1750_oil_on_canvas","item_variant":"undefined"},{"item_id":"LRI11801402","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"instruments_used_by_louis_pasteur_for_his_scientific_experiments_photograph","item_variant":"undefined"},{"item_id":"XJF498315","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_18th_century","item_category5":"balown","item_list_name":"search_results","item_name":"trade_card_for_thomas_heath_maker_of_mathematical_instruments_print_made_by_thomas_platt_c_1730_engr","item_variant":"undefined"},{"item_id":"MAJ5030658","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"giorgio_majno","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_instruments_delamarche_office_planetary_made_in_wood_and_paper_mache_paris_1770","item_variant":"undefined"},{"item_id":"UIG3525113","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"different_designs_of_barometers_by_joachim_d_alence","item_variant":"undefined"},{"item_id":"XJF498323","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_18th_century_after","item_category5":"balown","item_list_name":"search_results","item_name":"frontispiece_for_biblioteca_universale_sacro_profana_vol_1_by_vincenzo_coronelli_print_made_by_aless","item_variant":"undefined"},{"item_id":"UIT6190394","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"italy_piemonte_monterosa_scientific_institute_a_mosso_1900_1910_b_w_photo","item_variant":"undefined"},{"item_id":"LRI11801403","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"instruments_used_by_louis_pasteur_for_his_scientific_experiments_photograph","item_variant":"undefined"},{"item_id":"KNG278114","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"kingsbury_alan","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_doppler_effect_2000_oil_on_canvas","item_variant":"undefined"},{"item_id":"LLM2802546","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"professor_jacques_alexander_cesar_charles_chromolitho","item_variant":"undefined"},{"item_id":"CUB4509196","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientific_instruments_positioned_on_seabed_cnr_volcanology_research_aeolian_islands_sicily_italy","item_variant":"undefined"},{"item_id":"BEL466027","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"medical_instruments_used_to_amputate_the_leg_of_lord_robert_manners_photo","item_variant":"undefined"},{"item_id":"BL750587","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_organ_1650_engraving","item_variant":"undefined"},{"item_id":"TWC6349218","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"boulle_andre_charles_1642_1732","item_category5":"not_balown","item_list_name":"search_results","item_name":"barometer_and_thermometer_c_1710_pear_wood_premiere_partie_boulle_marquetry_of_brass_turtleshell_oak","item_variant":"undefined"},{"item_id":"LLE815727","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":"tiberius_cavallo_engraving","item_variant":"undefined"},{"item_id":"BL3900545","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"micrographia_or_some_physiological_descriptions_of_minute_bodies_made_by_magnifying_glasses_with_obs","item_variant":"undefined"},{"item_id":"MEV5044975","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"bussola_dionigi_1615_1687","item_category5":"not_balown","item_list_name":"search_results","item_name":"allegory_of_astrology_c_1673_terracotta_painted_as_fake_bronze","item_variant":"undefined"},{"item_id":"DGC696902","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dutch_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"various_hearing_aids_from_exercitationes_practicae_circa_medendi_methodum_by_frederik_dekkers_1694_e","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":" scientific instruments","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":474,"search_results_page_number":1}