Vintage Casio Digital Diary SF-7200SY Plus PC Sync 2MB Rare | #502321091
Casio - SF-6500SY - - Digital Diary - Casio SF6500SY - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
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File:Casio Digital Diary SF-7200SY 2MB 94.jpg - Wikimedia Commons
File:Casio Digital Diary SF-R20 open.JPG - Wikipedia