This US stamp Scott #730a, issued between 1931 and 1940, features a green and purple design highlighting the historical events of Chicago's Fort Dearborn and the Century of Progress. The 1 cent and 3 cent denominations are perfect for collectors of United States stamps and those interested in Chicago's history. This stamp is used and features the off-paper quality, making it an excellent addition to any stamp collection. The certification is uncertified, and the item has not been modified. Don't miss the opportunity to own a piece of American history.