2011 First-Class Forever Stamp - Civil War Sesquicentennial: Battle of Fort Sumter
2000 33c The Stars and Stripes: Fort Sumter Flag
1971 6c Paul Revere with Return Card
1971 6c Postal Card - Paul Revere
1978 28c Americana Series: Fort Nisqually
1977 9c Postal Card - Nathan Hale
1961 4c Civil War Centennial: Firing on Fort Sumter
2014 First-Class Forever Stamp - The War of 1812: Fort McHenry
1978 15c Americana Series: Fort McHenry Flag
1998 32c "Remember the Maine"
2001 34c Legendary Baseball Fields: Polo Grounds
2004 37c Lewis and Clark Expedition
1979 15c Albert Einstein
2008 42c Take Me Out to the Ballgame
1997 32c First Supersonic Flight
1995 60c Eddie Rickenbacker
2000 20c Fort Sumter Flag PC FDC
1973 8c Postal Card - Samuel Adams
2009 44c Gulf Coast Lighthouses: Fort Jefferson, Florida
1999 stamp pays homage to Britain's first stamp, the Penny Black, and Queen Victoria.
50 cachets featuring birds of the United States.
This great set of cinderella stamps were issued at the height of "Beatlemania."