This is a set of 10 schedule stamps featuring monkeys from KAMIO JAPAN INC. They were likely purchased about 30 years ago. Schedule Items: Stamp size is 1cm x 1cm each. Stamp size is 1cm x 1cm each. The transparent case has discolored due to age. The stamps themselves have ink stains. *Stored at home. No pets, no smokers. Heisei Retro