Ten historical cash registers. A thematic selection, not an reliability ranking. Licensed photographs. File:National Cash Register in the Irma Hotel, Cody, WY..jpg: Roger hallett; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:National_Cash_Register_in_the_Irma_Hotel,_Cody,_WY..jpg; Scaled and letterboxed without cropping. File:Antike Kassa für Schilling und Groschen, (NCR) National Cash Register Company, Wien, (Austria) 02.jpg: Naturpuur; CC BY 4.0; https://creativecommons.org/licenses/by/4.0; https://commons.wikimedia.org/wiki/File:Antike_Kassa_f%C3%BCr_Schilling_und_Groschen,_(NCR)_National_Cash_Register_Company,_Wien,_(Austria)_02.jpg; Scaled and letterboxed without cropping. File:Wooden National Cash Register.jpg: Eric Polk; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Wooden_National_Cash_Register.jpg; Scaled and letterboxed without cropping. File:Registrierkasse National.jpg: Paebi; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Registrierkasse_National.jpg; Scaled and letterboxed without cropping. File:Kasse Anker.jpg: Jared Preston; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Kasse_Anker.jpg; Scaled and letterboxed without cropping. File:HUGIN.jpg: ABELML; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:HUGIN.jpg; Scaled and letterboxed without cropping. File:Anker Restaurantkasse 150-99 E (39779969175).jpg: Thomas Vogt from Paderborn, Deutschland; CC BY-SA 2.0; https://creativecommons.org/licenses/by-sa/2.0; https://commons.wikimedia.org/wiki/File:Anker_Restaurantkasse_150-99_E_(39779969175).jpg; Scaled and letterboxed without cropping. File:National NCR Registrierkasse Cash registers Austria 03.jpg: Arths-at; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:National_NCR_Registrierkasse_Cash_registers_Austria_03.jpg; Scaled and letterboxed without cropping. File:Máquina Registradora NCR, 1930.jpg: Themium; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:M%C3%A1quina_Registradora_NCR,_1930.jpg; Scaled and letterboxed without cropping. File:National cash register, Le Cirio, Brussels, 2014.jpg: DimiTalen; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:National_cash_register,_Le_Cirio,_Brussels,_2014.jpg; Scaled and letterboxed without cropping. Adaptation: CC BY-SA 4.0. Original photographs retain their stated licenses. https://creativecommons.org/licenses/by-sa/4.0/