1996 blk,roul 111/2, 121/2, 161/2
1895 red, cream
1877 brn,engr. silk paper, perf 12
1879 red brn,thin paper, perf 12
1879 yel brn,thick paper, perf 12
1888 chocolate, med thick crisp paper
1889 choc, thick/extreme thick paper
1889 bis brn,thick/extreme thick paper
1889 bister brown
1892 light brown
1895 gray brown
1900 red brown
1907 blue, typo., perf 12
1907 blue,wmk,seal of U.S.
1912 blue, rouletted 61/2
1913 blue
1916 blk (pink), perf 12
1917 gry,blk, perf 12
1919 blk,thin,wht,crisp paper,perf 12
1936 black, perf 12 x 8 1/2
1946 gry blk,perf 12,med to thick paper
1946 gray black
1944 grey blk, perf 12 1/2 x 8 1/2
1947 gry blk, perf 81/2
1948 grey blk, thick paper perf 12 1/2
1948 grey blk, thick paper perf 8 1/2
1948 gry blk,hyphen hole perf 91/2
1950 gry blk,imperf at sides
1970 gry blk,hyphen hole 91/2ximperf
1972 blk,roul 91/2 x imperf
1972 blk, perf 121/2 x imperf
1992 black
1872 Registry Seal - green, white wove paper, perf 12
1872 green, printed on both sides, back