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File:Vintage Sperry Remington Model SSR-8 Electronic Pocket Calculator, Identical To The Casio fx-10 Except For Branding And Color, Made In Japan, Circa 1974 (14213112033).jpg - Wikimedia Commons
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Casio FX-300ESPLUS-2 Scientific Calculator - Large Display, Dual Power, Hard Case - 2 Line(s) - 10 Digits - Battery/Solar Powered - 0.4" x 3" x 6.4" - Black - 1 Each - Direct Office Buys
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Casio FX-115ESPLUS Advanced Scientific Calculator, 10-Digit Natural Textbook Display | OfficeSupply.com
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