1955 Certified Mail 15c
2020 First-Class Forever Stamp - Mayflower in Plymouth Harbor
1975 10c Pioneer 10 and Jupiter
1974 10c Skylab Project
1940s US First Day Cover Collection, Set of 60
2011 First-Class Forever Stamp - Owney the Postal Dog
1959 4c Silver Centennial
2021 First-Class Forever Stamp - Lunar New Year: Year of the Ox
2004 37c The Art of Disney, Friendship
2019 First-Class Forever Stamp - First Moon Landing
2019 First-Class Forever Stamp - First Moon Landing: The Moon
2018 First-Class Forever Stamp - Sally Ride
1971 8c Space Achievements
1982 20c Great Seal of the U.S. Envelope
1969 6c Apollo 8 Moon Orbit
1955 3¢ Soo Locks Centennial
1978 13c Indian Head Penny
1948 3c California Gold Rush Centennial
1956 3¢ Benjamin Franklin
1971 8c Antarctic Treaty
2018 50c Airmail Centenary Stamps, Set of 2
1971 8c United States Postal Service Emblem
1984 20c Roanoke Voyages
1995 32c Great Lakes Lighthouses
1997 20c Golden Gate Bridge in Daylight
1997 32c Stagecoach and Ship
2007 41c The Art of Disney, Magic
2008 42c The Art of Disney: Imagination
2020 First-Class Forever Stamp - 19th Amendment: Women Vote
1958 4¢ Overland Mail
1981 18c Space Achievement: Understanding the Sun
1995 32c US and Soviets link at Elbe River
1948 3c Indian Centennial
1976 13c - 31c American Bicentennial set of 4 souvenir sheets
1994 50c Norman Rockwell, souvenir sheet
1956 3¢ Nassau Hall
1964 5c William Shakespeare
1967 5c Accomplishments in Space
1978 13c CAPEX Wildlife souvenir sheet
1989 $2.40 Moon Landing
1992 29c World War II: V-mail Delivers Letters from Home
1999 33c Celebrate the Century - 1970s: Secretariat Wind Triple Crown
2006 39c The Art of Disney, Romance
2019 First-Class Forever Stamp - Transcontinental Railroad
2006 Joint Issue - US and Canada - Explorations of Samuel de Champlain
1978 10c John Hancock
1954 3c Nebraska Territory
1993 29c Legends of American Music: Elvis Presley