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Casio FX300MSPLUS2 Scientific 2nd Edition Calculator, with New Sleek Design, Black, 0.4" x 3" x 6.4" - Walmart.com
Casio calculator 20+ years old, works like new and used almost everyday. : r/BuyItForLife
Scientific Calculators | CASIO
Amazon.com: Casio FX300MSPLUS2 Scientific 2nd Edition Calculator, with New Sleek Design, Black, 0.4" x 3" x 6.4" & Blue Scientific Calculator : Everything Else