1928 2c Wright Brothers Airplane
1928 5c Globe and Airplane
1929 1/2c Nathan Hale, olive brown
1927 9c Jefferson, orange red
1929 2c George Rogers Clark
1925 20c Flat Plate Perf 11
1927 10c Rotary Press
1926-28 2c Washington, carmine
1926-28 3c Lincoln, violet
1923 9c Jefferson, rose
1925 2c Lexington-Concord Issue: Birth of Liberty
1926 2c Sesquicentennial Exposition: Liberty Bell
1926-28 1c Franklin, green
1928 2c Discovery of Hawaii, carmine
1928 5c Discovery of Hawaii, dark blue
1929 2c Sullivan's Expedition
1926 10c Airmail Perf 11
1926 15c Airmail Perf 11
1927 20c Airmail Perf 11
1928 5c Beacon on Rocky Mountains
1912-13 1c Parcel Post Stamp - Post Office Clerk
1894 2c Washington, carmine lake, type I
1894 2c Washington, carmine, unwatermarked, type II
1894 4c Lincoln Unwatermarked, Dark Brown