File:Vintage Soundesign Electronic Pocket Calculator, Model 8400 (a.k.a. Computer Mini), VFD, Made In Japan, Circa 1970s (12914411974).jpg - Wikimedia Commons
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My 1971 Burroughs C3155 calculator. It was made before they decided on how digital number displays should look. That zero at the end is not a mistake.. That's actually how it's supposed