Set of two United States Treasury Mint commemorative state quarters for Iowa. Part of the 50 State Quarters program. Iowa was the 29th state to be admitted in to the Union. The design features a one room schoolhouse with a teacher and students planting a tree with inscriptions Foundation in Education and Grant Wood. The design is based on a painting called Arbor Day by Grant Wood, who was born in Iowa. Weight: (1) 5.670 g.