John Wolff's Web Museum - The Casio Computer Company
File:Vintage Casio-Mini Electronic Pocket Calculator, Model CM-602, 6 Digit Fluorescent Display Made In Japan, Circa 1973 (14184440031).jpg - Wikimedia Commons
Casio micro-mini
File:Vintage Casio-Mini Electronic Pocket Calculator, Made In Japan, Green Fluorescent Display, Circa 1972 (15804894498).jpg - Wikimedia Commons
Casio - Pocket Mini CP-801b - - Vintage calculator - Casio Pocket Mini CP801b - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
File:Vintage Casio Pocket-Mini (aka P811) LED Handheld Electronic Calculator, Made in Japan, Circa 1976 (8714450871).jpg - Wikimedia Commons
Vintage CASIO Pocket-Mini Electronic Calculator, + Case Very Rare Red LED | Red led, Mini, Casio
vintage Casio P-811 pocket calculator | eBay
John Wolff's Web Museum - The Casio Computer Company
Casio Pocket-Mini P-811 calculator | 102632976 | Computer History Museum