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Casio FX115ESPLUS Scientific Calculator - Hard Case, Auto Power Off, Dual Power, Textbook Display - 4 Line(s) - 16 Digits - Battery/Solar Powered - 1 - 1" x 3.3" x 6.5" - White - 1 Each - Walmart.com
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Casio HS-8V Basic Calculator,Battery Backup, Easy-to-read Display, Big Display, Auto Power Off, Independent Memory, Non-stick Key - Battery/Solar Powered - 0.3" x 2.3" x 4" - Silver - kite+key, Rutgers Tech Store
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File:Vintage Casio Model AS-80 Electronic Desktop Calculator, Battery or AC Operation, Made In Japan, Circa 1971 (14551050788).jpg - Wikimedia Commons
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