Thank you very much for viewing. This is a CANON MARK1 calculator, which is now discontinued. I haven't used it much, and it has been stored in a drawer, so it appears to be in good condition with no noticeable dirt or scratches to the untrained eye. (Please forgive any oversight.) It functions without any problems, but I am selling it to declutter. Details: Manufacturer: CANON Brand: CANON ELECTRONIC BUSINESS Product Model: Mark I Features: Solar calculator, standard key layout I haven't used it much, but it has been stored at home, so I cannot recommend it to those who are concerned about its condition. Please understand. Shipping is planned via Mercari delivery or postal service.