{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"LLM7196888","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":"le_vocabulaire_illustre_opticien_optician_optiker_engraving","item_variant":"undefined"},{"item_id":"UTD2866181","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"view_to_st_reinold_s_church_and_market_corner_at_dortmund_germany_1930s_b_w_photo","item_variant":"undefined"},{"item_id":"UTD2887102","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_trip_to_vienna_germany_1930s_b_w_photo","item_variant":"undefined"},{"item_id":"UTD2887103","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_trip_to_vienna_germany_1930s_b_w_photo","item_variant":"undefined"},{"item_id":"QGA936078","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"johannes_kepler_1571_1630_german_mathematician_astronomer_and_astrologer","item_variant":"undefined"},{"item_id":"QGA936737","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"johannes_kepler_1571_1630_german_mathematician_astronomer_and_astrologer","item_variant":"undefined"},{"item_id":"QGA935998","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"joseph_von_fraunhofer_1787_1826_german_physicist","item_variant":"undefined"},{"item_id":"QGA936688","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"joseph_von_fraunhofer_1787_1826_german_physicist","item_variant":"undefined"},{"item_id":"LTT7238851","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"mittenwald_germany_1960s","item_variant":"undefined"},{"item_id":"PRX1002062","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"johannes_kepler_1884_90_phototype","item_variant":"undefined"},{"item_id":"PRX1002482","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"josef_fraunhofer_1884_90_phototype","item_variant":"undefined"},{"item_id":"OPL1547121","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"cabaret_aristide_bruant_with_posters_by_toulouse_lautrec_boulevard_de_rochechouart_paris_1893_b_w_ph","item_variant":"undefined"},{"item_id":"UIS5062278","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"george_dollond_optician_english_optician_c_1850","item_variant":"undefined"},{"item_id":"LLM2801991","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":"optician_engraving","item_variant":"undefined"},{"item_id":"LLM6004280","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_optician_engraving","item_variant":"undefined"},{"item_id":"LLM2806977","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":"optician_engraving","item_variant":"undefined"},{"item_id":"XJF140215","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"spanish_school_17th_century","item_category5":"balown","item_list_name":"search_results","item_name":"eye_surgery_to_remove_cataracts_pen_and_ink_on_paper_b_w_photo","item_variant":"undefined"},{"item_id":"XLF3781930","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"optician_s_advertisement_by_the_royal_society","item_variant":"undefined"},{"item_id":"SSI2174741","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"male_optometrist_talking_to_a_patient","item_variant":"undefined"},{"item_id":"LLM6026891","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"trade_signs_artists_and_opticians_litho","item_variant":"undefined"},{"item_id":"SSI2169212","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"optometrist_examining_a_boy_s_eye","item_variant":"undefined"},{"item_id":"UIG5311417","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_engraving_depicting_knapp_s_auto_ophthalmoscope_19th_century","item_variant":"undefined"},{"item_id":"XIR56130","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"gallo_roman_1st_century_bc","item_category5":"balown","item_list_name":"search_results","item_name":"instruments_from_an_oculist_s_case_from_reims_metal","item_variant":"undefined"},{"item_id":"LET2225747","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"le_tellier_philippe","item_category5":"not_balown","item_list_name":"search_results","item_name":"henri_francois_lissac","item_variant":"undefined"},{"item_id":"UIG5311414","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"engraving_depicting_e_barnard_s_opsiometer_for_testing_eyesight_19th_century","item_variant":"undefined"},{"item_id":"SSI2169213","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"male_optometrist_examining_the_eyes_of_a_patient","item_variant":"undefined"},{"item_id":"LET2225741","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"le_tellier_philippe","item_category5":"not_balown","item_list_name":"search_results","item_name":"henri_francois_lissac","item_variant":"undefined"},{"item_id":"UIS5622796","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"peter_dollond_english_optician_c_1800","item_variant":"undefined"},{"item_id":"PCT2648333","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":"eye_surgery_illustration_from_dictionnaire_de_medecine_d_emile_littre_1884_litho","item_variant":"undefined"},{"item_id":"XIR202757","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"straet_jan_van_der_giovanni_stradano_1523_1605_after","item_category5":"balown","item_list_name":"search_results","item_name":"the_spectacles_seller_engraved_by_jan_collaert_and_joan_galle_1600_76_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"UIG3525426","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"advertisement_of_john_marshall_optician_engraving","item_variant":"undefined"},{"item_id":"UIS5092775","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_dollond_optician_c_1750s","item_variant":"undefined"},{"item_id":"UIS5076136","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"j_h_steward_english_optician","item_variant":"undefined"},{"item_id":"UIS5071269","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"peter_dollond_english_optician_c_1800","item_variant":"undefined"},{"item_id":"LLE820347","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":"benj_martin_engraving","item_variant":"undefined"},{"item_id":"SSI2169070","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"optician_fitting_eyeglasses_to_a_young_man","item_variant":"undefined"},{"item_id":"BNS6352292","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"w_guilbault_optician_c_1900_silver_gelatin_print","item_variant":"undefined"},{"item_id":"UIS5090899","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"peter_dollond_british_optician_c_1800","item_variant":"undefined"},{"item_id":"UIS5091065","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"peter_dollond_english_optician_c_1800","item_variant":"undefined"},{"item_id":"XJF137034","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"the_glasses_maker_published_by_hartman_schopper_woodcut_b_w_photo","item_variant":"undefined"},{"item_id":"LLE815859","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"wilson_benjamin_1721_88_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_dollond_engraving","item_variant":"undefined"},{"item_id":"LLE815739","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":"william_kitchiner_engraving","item_variant":"undefined"},{"item_id":"CHT236769","item_category":"object","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":"microscope_signed_by_francois_villette_optician_to_the_prince_of_liege_1765_wood_bronze","item_variant":"undefined"},{"item_id":"UIS5087757","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jesse_ramsden_english_optician_and_instrument_maker_1791","item_variant":"undefined"},{"item_id":"STC255635","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"optique_medicale_jean_revenel_boutiques_henry_delacroix_editions_s_de_bonadona_paris_late_1920s_poch","item_variant":"undefined"},{"item_id":"SSI2169214","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"male_optometrist_examining_the_eyes_of_a_patient_1950","item_variant":"undefined"},{"item_id":"EPL6812649","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"advertisement_for_lancaster_thorpe_opticians_derby","item_variant":"undefined"},{"item_id":"MEP2336925","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"joseph_von_fraunhofer_s_heliometer","item_variant":"undefined"},{"item_id":"UIS5074482","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_dollond_english_optician_c_1750s","item_variant":"undefined"},{"item_id":"LLM11707499","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":"advertisement_of_john_marshall_optician_1694_engraving","item_variant":"undefined"},{"item_id":"AMD8977920","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"david_goldblatt","item_category5":"not_balown","item_list_name":"search_results","item_name":"derrick_nkambule_an_optometrist_in_kwaggafontein_2009_photo","item_variant":"undefined"},{"item_id":"XEE4407424","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"a_lunetier_optician_manufacturer_of_glasses_in_1745","item_variant":"undefined"},{"item_id":"UIS5071428","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"andrew_pritchard_english_optician_c_1850s","item_variant":"undefined"},{"item_id":"UIS5062274","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_dollond_english_optician_c_1750s","item_variant":"undefined"},{"item_id":"GDE173363","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"dean_graham_b_1951","item_category5":"not_balown","item_list_name":"search_results","item_name":"blind_spot_1978_acrylic_on_canvas","item_variant":"undefined"},{"item_id":"UIS5072041","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"peter_barlow_british_mathematician_physicist_and_optician_c_1850s","item_variant":"undefined"},{"item_id":"STC619428","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_dollond_engraving","item_variant":"undefined"},{"item_id":"CHT200413","item_category":"photo","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":"phantasmagoria_from_memoires_recreatifs_scientifiques_et_anecdotiques_by_etienne_gaspard_robertson_1","item_variant":"undefined"},{"item_id":"OSN3914682","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"osborne_neale","item_category5":"not_balown","item_list_name":"search_results","item_name":"model_wearing_a_backless_dress_and_a_monocle","item_variant":"undefined"},{"item_id":"XEE5027807","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"stefano_bianchetti","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_giovanni_battista_amici_italian_optician_engraving","item_variant":"undefined"},{"item_id":"LLJ2776224","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_photographer_20th_century_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"st_ethelburga_s_church_bishopsgate_london_colour_photo","item_variant":"undefined"},{"item_id":"UIS5072846","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"giovanni_battista_amici_optician_astronomer_and_microscopist_c_1827","item_variant":"undefined"},{"item_id":"XIR215713","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"roman_2nd_century","item_category5":"balown","item_list_name":"search_results","item_name":"relief_depicting_an_oculist_examining_a_patient_stone","item_variant":"undefined"},{"item_id":"MEP2337319","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_ignazio_porro","item_variant":"undefined"},{"item_id":"XEE5027702","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"stefano_bianchetti","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_ernst_abbe_astronomer_optician_german_physicist","item_variant":"undefined"},{"item_id":"UIS5074471","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"george_dollond_english_optician_early_19th_century","item_variant":"undefined"},{"item_id":"DUV4216467","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"letter_o_optician_professions_alphabet_c_1900_lithograph","item_variant":"undefined"},{"item_id":"XEE5032102","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"stefano_bianchetti","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_carl_zeiss_1816_1888_german_scientist_german_optician","item_variant":"undefined"},{"item_id":"LLM5208636","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":"advertisement_theodore_hamblin_limited_colour_litho","item_variant":"undefined"},{"item_id":"LLL732986","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":"two_girls_wearing_muffs_chromolitho","item_variant":"undefined"},{"item_id":"BL3588336","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":"the_second_part_of_the_spectacles_or_rather_a_multiplying_glass_fitted_for_their_use_which_are_not_a","item_variant":"undefined"},{"item_id":"MEP2350837","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"giorgio_lotti","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_optical_stand_at_the_trade_fair","item_variant":"undefined"},{"item_id":"XEE4141968","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_joseph_von_fraunhofer_1787_1826_german_optician_and_physicist_founder_of_spectroscopy","item_variant":"undefined"},{"item_id":"PFH3061340","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"iraq_the_earliest_known_medical_description_of_the_eye_from_a_9th_century_work_by_hunayn_ibn_ishaq_8","item_variant":"undefined"},{"item_id":"DUV4197863","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":"letter_o_as_optician_alphabet_of_monkeys_1863_epinal_print","item_variant":"undefined"},{"item_id":"AKM210052","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"american_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"35_n_ninth_street_philadelphia_c_1930_b_w_photo","item_variant":"undefined"},{"item_id":"UIG3585660","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_conversion_of_saint_hubertus_or_hubert","item_variant":"undefined"},{"item_id":"JHL394918","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dixon_henry_1820_92","item_category5":"not_balown","item_list_name":"search_results","item_name":"aldersgate_street_c_1879_b_w_photo","item_variant":"undefined"},{"item_id":"LSE2648335","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":"illustration_from_tractatus_de_homine_by_rene_descartes_1664_litho","item_variant":"undefined"},{"item_id":"LLL6032722","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":"invoice_from_james_bassett_optician_and_instrument_maker_liverpool_1840s_engraving","item_variant":"undefined"},{"item_id":"IMB7279221","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"carl_august_von_steinheil_german_physicist_astronomer_optician_and_entrepreneur_historical","item_variant":"undefined"},{"item_id":"UIS5076929","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"enrico_angelo_ludovico_negretti_italian_optician_mid_19th_century","item_variant":"undefined"},{"item_id":"BL3588335","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":"title_page_a_new_invention_or_a_paire_of_christall_spectakles_1644_engraving","item_variant":"undefined"},{"item_id":"JDK5318442","item_category":"photo","item_category2":"no_copyright","item_category3":"premium","item_category4":"deakin_john_1912_1972","item_category5":"not_balown","item_list_name":"search_results","item_name":"paris_shopfront_c_1955_b_w_photo","item_variant":"undefined"},{"item_id":"GNG5941036","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"pascal_deloche","item_category5":"not_balown","item_list_name":"search_results","item_name":"assortment_of_glasses_in_an_optician_shop_ho_chi_minh_city_vietnam_photo","item_variant":"undefined"},{"item_id":"XJF448292","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"straet_jan_van_der_giovanni_stradano_1523_1605_after","item_category5":"balown","item_list_name":"search_results","item_name":"conspicilla_plate_15_from_nova_reperta_engraved_by_philip_galle_c_1580_1605_engraving","item_variant":"undefined"},{"item_id":"AMD8977395","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"david_goldblatt","item_category5":"not_balown","item_list_name":"search_results","item_name":"south_africa_circa_1999_optometrist_bernard_woolf_of_cape_town_woolf_designed_a_1999_photo","item_variant":"undefined"},{"item_id":"IMO8744234","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"heinz_gebhardt","item_category5":"not_balown","item_list_name":"search_results","item_name":"carl_august_von_steinheil_1801_1870_physicist_optician_produced_the_1853_photo","item_variant":"undefined"},{"item_id":"XJF489002","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_john_benjamin_dancer_b_w_photo","item_variant":"undefined"},{"item_id":"JHL394940","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"dixon_henry_1820_92","item_category5":"not_balown","item_list_name":"search_results","item_name":"no_73_cheapside_c_1883_b_w_photo","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"optiker","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":200,"search_results_page_number":1}