6¢ Botanical Congress - Pack of 25 unused stamps from 1969
25¢ Owl and Grosbeak Bird - Pack of 25 unused stamps from 1988
8¢ Wildlife Conservation - Pack of 25 unused stamps from 1971
15¢ Endangered Flora - Pack of 25 unused stamps from 1979
15¢ Endangered Flora - 25 unused stamps from 1979
5¢ Christmas Holly - Pack of 25 unused stamps from 1964
33¢ Apples - Pack of 25 unused stamps from 2013
20¢ Audubon Columbia Jay - Pack of 25 unused stamps from 1967
32¢ Iowa Statehood - Pack of 25 unused stamps from 1996
3¢ Iowa Statehood Centennial - Pack of 25 unused stamps from 1946
25¢ Classic Cars - Pack of 25 unused stamps from 1988
25¢ Comanche Headdress - Pack of 25 unused stamps from 1990
