3.25" tall mug w/2.75" dia. made in the 1950s. Bottom has stamp that states "Personal Property Of Japan." This text wraps around a circle which one could write their name. Interestingly designed mug features handle that has a dual function as a whistle and is shaped like a rocket. Mug has illustration of spaceman approaching satellite w/Earth in bkg. Larger image of Earth on reverse. Count down numbers are printed along handle. Exc.