1918 American Red Cross Christmas Seal - Type II, perf 12 1/2 x roulette 9 1/2
1940 National Tuberculosis Assn. Christmas Seal - perf 12 1/2
1941 National Tuberculosis Assn. Christmas Seal - perf 12 1/2
1949 National Tuberculosis Assn. Christmas Seal - perf 12 1/2
1951 National Tuberculosis Assn. Christmas Seal - perf 12 1/2x 12
1907 American Red Cross Christmas Seal - Type II - inscribed "Merry Christmas" & "Happy New Year"
1912 American Red Cross Christmas Seal
1915 American Red Cross Christmas Seal - perf 12 1/2
1921 National Tuberculosis Assn. Christmas Seal - Type II, perf 12 1/2
1948 National Tuberculosis Assn. Christmas Seal - perf 12x 12 1/2
1950 National Tuberculosis Assn. Christmas Seal - perf 12 1/2x 12
1951 National Tuberculosis Assn. Christmas Seal - perf 12 1/2
1879 Post Office Seal - thin paper, perf 12, red brown
1889 Post Office Seal - thick/extreme thick paper, chocolate
1900 Post Office Seal - red brown
1907 Post Office Seal - perf 12, bright royal blue
1913 Post Office Seal - blue
1917 Post Office Seal - perf 12, gray, black
1946 Post Office Seal - perf 12,med to thick paper, gray black
1944 Post Office Seal - perf 12 1/2 x 8 1/2, grey black
1947 Post Office Seal - perf 81/2, grey black
1948 Post Office Seal -thick paper perf 8 1/2, grey black
1972 Post Office Seal - perf 121/2 x imperf, black
1988 Post Office Seal -self-adhesive, 40 x 21mm, black