We are always looking for Vintage Calculators. If you have an old calculator made by Hewlett Packard, Bowmar, Texas Instruments, Canon, Sanyo, Sharp, Busicom, Minolta, Brother, Walther, Toshiba, Lloyds, Sinclair, Casio, etc. We might be interested in buying it. We prefer that they be in good working order with no damage. Original boxes, manuals, and cables are a bonus.