This is the CASIO CG-8 OCT-REVERSI & CALCULATOR GAME. It's a rare product that combines a calculator function with the game of Reversi. Its retro design makes it a great addition to any collection. 【Brand】CASIO 【Model Number】CG-8 【Functions】Calculator, Reversi game 【Condition】Overall, it shows signs of use, with fine scratches and dirt on the screen and body. Operation has not been confirmed. Thank you.