1983 Joseph Priestley Plate Block Of 4 20c Postage Stamps Sc# 2038 - MNH, OG - CW247a
1983 Joseph Priestley Single 20c Postage Stamp - Sc# 2038 - MNH,OG
1984 Roanoke Voyages Block Of 4 20c Postage Stamps - Sc# 2093 - MNH, OG - CW34b
1984 Roanoke Voyages Plate Block Of 4 20c Postage Stamps - Sc# 2093 - MNH, OG - CW34a
1984 Roanoke Voyages Single 20c Postage Stamp - Sc# 2093 - MNH, OG - CW34b
1986 Arctic Explorers Plate Block Of 4 22c Postage Stamps - Sc 2220-2223 - MNH, OG - CX874
1988 Arctic Explorers Block of 4 25c Postage Stamps - MNH, OG - Sc# 2386
1992 Juan Rodriguez Cabrillo Single 29c Postage Stamp - Sc# 2704 - MNG,OG
1992 Juan Rodriguez Cabrillo Plate Block of 4 29c Postage Stamps - MNH, OG - Sc# 2704
1993 Columbus Landing in Puerto Rico Block of 4 29c Postage Stamps - MNH, OG - Sc# 2805
1993 Columbus Landing in Puerto Rico Plate Block of 4 29c Postage Stamps - MNH, OG - Sc# 2805
1993 Columbus Landing in Puerto Rico Single 29c Postage Stamp - MNH, OG - Sc# 2805
1998 Klondike Gold Rush Plate Block of 4 32c Postage Stamps - MNH, OG - Sc# 3235
1998 Klondike Gold Rush Single 32c Postage Stamp -Sc# 3235 - MNH,OG
1999 California Gold Rush Plate Block of 4 33c Postage Stamps - MNH, OG - Sc# 3316
2004 Lewis & Clark Plate Block of 4 37c Postage Stamps - Sc# 3854 - MNH - CX796
Single 1999 California Gold Rush Single 33c Postage Stamp - Sc# 3316 - MNH,OG
