Check the listing for details. Hewlett Packard HP 11C scientific calculator with protective case Please Read. Condition: Used, Made in United States. Listed at 100.00 USD. PLEASE READ ENTIRE DESCRIPTION BELOW. Vintage Hewlett Packard HP 11C Scientific Calculator. Keyboard has been tested, and it does fully work. Please note front corner logo tag is missing. Some areas of the pixels in the corners are blacked out when on or off. Calculator does power on, and all buttons function properly. Some visible surface scratches on front and back areas. Over all good pre owned condition for its age. It does include the 3- (LR44) batteries it will need to function inside of it. 14 day money back. Buyer is responsible for return S&H Fees. Please see all included photos showing the items full condition before deciding to make final purchase. Let me know if you have any questions.