Showa Retro Calculators - Lot Sale All Brand New, Unused 【SHARP EL-343】 Solar Powered - Operation Confirmed 【SEKISUI Calculator Watch】 Button Battery - Operation Not Confirmed Calendar and Alarm Functions 【CASIO DATA-CAL DC-100】 Button Battery - Operation Not Confirmed In addition to calculation functions, it has a phonebook function 【EL-838】 Button Battery - Operation Not Confirmed These are all quite old calculators, but the main bodies and included notebooks are in beautiful condition with no stains. The button battery types have not been tested as they have no batteries. The outer boxes have some damage. Instruction manuals included except for EL-838. Please only purchase if you understand that these items have been stored at home.