Tiger Mechanical Calculator, Hand-Crank Calculator Operation unconfirmed. For safety, treated as junk. For parts or for those who can repair it. Please refer to the photos for the exterior. The product is everything shown in the photos. Please understand that the usage period and purchase date are "unknown." It has been stored, and rust, dust, scratches, dirt, etc. can be seen. Will be shipped wrapped in bubble wrap in a reused cardboard box. Sold as-is. No returns, refunds, or exchanges accepted for junk items. After purchase, please no claims, no returns.