U.S. Mint Stamps by Year

United States #2247 22¢ Pan American Games Mint Single

United States #2337 22¢ Pennsylvania Statehood Mint Single

United States #2360 22¢ Signing of U.S. Constitution Mint Single

United States #2275 22¢ United Way Mint Single

United States #2253 5¢ Milk Wagon Mint Single

United States #2394 $8.75 Express Mail Mint Single

United States #2376 22¢ Knute Rockne Mint Single

United States #2369 22¢ Winter Olympics Mint Single

United States #2386-89 25¢ Antarctic Explorers Mint Se-tenant Block of 4

United States #2399 25¢ Christmas - Madonna & Child Mint Single

United States #2377 25¢ Francis Ouimet Mint Single

United States #2400 25¢ One Horse Sleigh Mint Single