Casio Fx-2000 Scientific Calculator Retro Tech Japan 1970s | eBay
Casio FX 260 Solar II Scientific Calculator 5" x 0.6" x 2.9" - Walmart.com
Amazon.com: Casio FX-991SP CW – Scientific Calculator, Recommended for Spanish and Portuguese Curriculum, 5 Languages, More Than 560 Functions, Solar, White : Office Products