This is a Casio Computer √121-S. It's a relic from over 50 years ago, released in 1973. Despite its age, the exterior has no significant scratches, cracks, or chips. However, due to the deterioration of the power switch, the fluorescent display only briefly shows "0" when the power is switched on and off, and it's currently unable to display calculations. Someone with electrical knowledge might be able to repair it by replacing the switch, but I'm not sure. The cover also shows signs of wear. Since I can't fully confirm its functionality, I'm selling it as junk. Would it make a nice addition to a Showa-era retro interior? Approximate external dimensions: W = 175mm, D = 205mm, H = 65mm As the original box is not available, I will carefully pack it with air cushioning (bubble wrap) and ship it in a recycled cardboard box. Please understand that this is a used item before purchasing. #Casio #√121-S #Calculator #92