STAMPS BY YEAR
1925
United States, Special handling, lettering only
1930
United States, Massachusetts bay, lettering only
1932
United States, George Washington, lettering on 0.5c and 3c
1934
United States, National Parks,lettering on 6c, 7c and 8c
1935
United States, Trans-pacific airmail, lettering only
1936
United States, Rhode Island, lettering only
1925
United States, Special handling, lettering only
1930
United States, Massachusetts bay, lettering only
1932
United States, George Washington, lettering on 0.5c and 3c
1934
United States, National Parks,lettering on 6c, 7c and 8c
1935
United States, Trans-pacific airmail, lettering only
1936
United States, Rhode Island, lettering only