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Casio DS-20E
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920 - 10 Digit Compact Scientific Calculator with Hinged Case
Scientific Calculator - Etsy
VICTOR Scientific Calculator: Portable, 10, LCD, 3/4 in H x 2 1/4 in W - 1TLU9|930-2 - Grainger
Scientific Calculator - Etsy
Casio Scientific Calculator fx-4200P 10-Digit Dot Matrix LCD Vintage (C13B4) | eBay
