Scientific Calculator (CASIO fx-991ES PLUS) | 3D CAD Model Library | GrabCAD
File:Vintage Casio Model fx-7000G Scientific Calculator, LCD Dot Matrix Display, Made In Japan, World's First Graphing Calculator Available To The Public, Circa 1985 - 1988 (15810483905).jpg - Wikimedia Commons
Casio FX82AU PLUS II Scientific Calculator 3D model | CGTrader