1980-1999

United States #2121 22¢ Lightning Whelk Mint Single

United States #2139 22¢ Mallard Mint Single

United States #2137 22¢ Mary Bethune Mint Single

United States #2119 22¢ New England Neptune Mint Single

United States #2159 22¢ Public Education Mint Single

United States #2141 22¢ Redhead Mint Single

United States #2118 22¢ Reticulated Helmet Mint Single

United States #2144 22¢ Rural Electricity Mint Single

United States #2157 22¢ Saddlebred Mint Single

United States #2154 22¢ World War I Veterans Mint Single

United States #2123 3.4¢ School Bus Mint Single

United States #2124 4.9¢ Buckboard Mint Single