Ten real historic binoculars, field glasses, and opera glasses shown with verified Wikimedia Commons photographs: early binocular telescope, museum field glasses, military and naval models, Zeiss, and Leitz. Photograph credits: 1. File:Binocular telescope, by Jan and Harmanus van Deijl.JPG; AlfvanBeem; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Binocular_telescope,_by_Jan_and_Harmanus_van_Deijl.JPG; 2. File:Binoculars (AM 2004.5.5-3).jpg; not researched; CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File:Binoculars_(AM_2004.5.5-3).jpg; 3. File:Ulysses S. Grant's Field Glasses.jpg; National Museum of American History; Public domain; ; https://commons.wikimedia.org/wiki/File:Ulysses_S._Grant's_Field_Glasses.jpg; 4. File:Opera glasses MET 39.68.jpg; This file was donated to Wikimedia Commons as part of a project by the Metropolitan Museum of Art . See the Image and Data Resources Open Access Policy; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Opera_glasses_MET_39.68.jpg; 5. File:France, Paris, early 20th century - Opera Glasses - 1979.117 - Cleveland Museum of Art.jpg; https://clevelandart.org/art/1979.117; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:France,_Paris,_early_20th_century_-_Opera_Glasses_-_1979.117_-_Cleveland_Museum_of_Art.jpg; 6. File:Binoculars (AM 610305).jpg; API data Catalogue record Photo; CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File:Binoculars_(AM_610305).jpg; 7. File:Carl Zeiss TELITA-I 6x18.JPG; Senshu; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Carl_Zeiss_TELITA-I_6x18.JPG; 8. File:Polish military binoculars, 1935.JPG; MOs810; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Polish_military_binoculars,_1935.JPG; 9. File:Navy binoculars.jpg; U.S. Navy photo by Airman Ricardo J. Reyes.; Public domain; ; https://commons.wikimedia.org/wiki/File:Navy_binoculars.jpg; 10. File:German Occupation of Norway during WW2 1940-45 Military equipment Binoculars Fernglas Leitz beh 7x50 Tysk militærkikkert Bergenhus Festningsmuseum Fortress Military Museum Bergen 2021 6135.jpg; Wolfmann; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:German_Occupation_of_Norway_during_WW2_1940-45_Military_equipment_Binoculars_Fernglas_Leitz_beh_7x50_Tysk_milit%C3%A6rkikkert_Bergenhus_Festningsmuseum_Fortress_Military_Museum_Bergen_2021_6135.jpg;