1977 Casio CQ-1 Calculator Ad - World Exclusive | eBay
Here's my Casio CQ-1 (Tiffany & Co. version from 1976) calculator/clock. Any idea on it's rarity or value? : r/casio
Casio - CQ-1 Brown Tiffany - - Vintage calculator - Casio CQ1 Brown Tiffany - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA