Casio - CQ-1 Brown - - Vintage calculator - Casio CQ1 Brown - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
File:Vintage Casio Computer Quartz CQ-1 Electronic Pocket Calculator, Made in Japan, Circa 1975 (11574678186).jpg - Wikimedia Commons
Casio computer quartz cq1 - Sold through Direct Sale - 105576199
Combined Calculator (Casio)
Casio - CQ1 Brown V2 - - Vintage calculator - Casio CQ1 Brown V2 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA