13¢ Butterflies - Pack of 25 unused stamps from 1977
29¢ Minerals - Pack of 25 unused stamps from 1992
10¢ Minerals - Pack of 25 unused stamps from 1974
41¢ Polar Lights - Pack of 25 unused stamps from 1999
8¢ Wildlife Conservation - Pack of 25 unused stamps from 1972
8¢ Historic Preservation Stamps - Pack of 25 unused stamps from 1971
22¢ Duck Decoys - Pack of 25 unused stamps from 1985
