1968 6¢ Chief Joseph Mint Single

United States #1363 6¢ Christmas Mint Single

United States #1348 6¢ Bennington Mint Single

United States #1340 6¢ Hemisfair '68 Mint Single

United States #1344 6¢ Register & Vote Mint Single

United States #1362 6¢ Waterfowl Conservation Mint Single

United States #1355 6¢ Walt Disney Mint Single

United States #1358 6¢ Arkansas River Mint Single

United States #1343 6¢ Law & Order Mint Single

United States #1359 6¢ Leif Erikson Mint Single