This is a nostalgic Sharp PC-1402. One screw is missing from the back. The opposite side is held down with tape. There are stains around the LCD. There is a chip on part of the case. The LCD is a little dim. I tried using it for a while to check its operation, and it's working for now. It's an old item, so I don't know how much longer it will work. It was stored in an environment without smoking or pets.