A small calculator from the Showa era. It's thin. Size: Approximately 5.3cm x 9cm Thickness: 5mm Back then, it was light and easy to carry, and I used it in class when I was a student. Pressing the ♪ mark makes a beep sound with each press. To turn off the sound, press the ♪ mark again. Requires two button batteries. The batteries are LR1130. Batteries can't be shipped due to postal regulations, so please prepare new ones yourself. It's an old item, so there are some scratches and wear from use. Please understand. #Calculator #SmallCalculator #SHARPCalculator #ShowaRetroCalculator #ShowaRetro #RareItem #ThinCalculator #Calculation #Stationery #VintageItem