This product is a collection of 35 used stamps issued by the United States in 1940. The stamps feature famous Americans from various fields such as authors, poets, educators, scientists, composers, artists, and inventors. The denominations of the stamps are 1 cent, 2 cents, 3 cents, 5 cents, and 10 cents. The stamps are canceled with a machine cancel and are uncertified. The stamps are off paper and come in a complete set.