| United States |
| 1847 Issue (22) |
| 1851 Issue (36) |
| 1857 Issue (61) |
| 1861 Premiere Gravures (4) |
| 1861-1866 Issue (40) |
| 1867 Grilled Issue (42) |
| 1869 Pictorial Issue (33) |
| 1870-1871 National Bank Note Co. Issue, H Grill (16) |
| 1870-1871 National Bank Note Co. Issue, without gr (16) |
| 1873 Continental Bank Note Co. Issue, white wove (17) |
| 1875 Continental Bank Note Co. Issue, yellowish wo (3) |
| 1875 Re-issue of the 1861-1866 Issue (15) |
| 1875 Re-issue of the 1869 Pictorial Issue (23) |
| 1875 Reprints of the 1857 Issue (11) |
| 1875 Reproductions of the 1847 Issue (6) |
| 1875 Special Printing of the 1873 Continental Issu (11) |
| 1879 American Bank Note Co. Issue, soft paper (10) |
| 1880-1882 Special Printings of the 1879 & 1882 ABN (5) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (6) |
| 1887 American Bank Note Co. Issue (7) |
| 1890-1893 Small Bank Notes Issue (13) |
| 1893 Columbian Issue (46) |
| 1894 First Bureau Issue, Unwatermarked (11) |
| 1895 First Bureau Issue, Watermarked (20) |
| 1898 First Bureau Issue, UPU colors (8) |
| 1898 Trans-Mississippi Issue (20) |
| 1901 Pan-American Issue (19) |
| 1902-1908 Second Bureau Issue (38) |
| 1904 Louisiana Purchase Issue (8) |
| 1907 Jamestown Issue (2) |
| 1908-1909 Washington-Franklin Issue, DL wmk, imper (1) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (10) |
| 1908-1910 Washington-Franklin Issue, DL wmk, perf (27) |
| 1909 Commemorative Issues (9) |
| 1909 Washington-Franklin Issue, Bluish Paper (13) |
| 1910 Washington-Franklin Issue, SL wmk, imperf (1) |
| 1910-1911 Washington-Franklin Issue, SL wmk, perf (14) |
| 1910-1913 Washington-Franklin Issue, SL wmk, perf (23) |
| 1912 Washington-Franklin Issue, DL wmk, perf 12 (6) |
| 1912 Washington-Franklin Issue, SL wmk, perf 8½ co (7) |
| 1912-1914 Washington-Franklin Issue, SL wmk, perf (15) |
| 1913-1915 Panama-Pacific Issue (25) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (6) |
| 1914 Washington-Franklin Issue, SL wmk, imperf, ro (4) |
| 1914 Washington-Franklin Issue, SL wmk, perf 10 co (10) |
| 1914-1916 Washington-Franklin Issue, SL wmk, perf (20) |
| 1915 Washington-Franklin Issue, DL wmk, perf 10 (1) |
| 1916-1917 Washington-Franklin Issue, flat plate, u (16) |
| 1916-1922 Washington-Franklin Issue, rotary plate, (10) |
| 1917 Washington-Franklin Issue, flat plate, DL wmk (2) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (20) |
| 1918 Washington-Franklin Issue, flat plate, perf 1 (10) |
| 1918-1920 Washington-Franklin Issue, offset, imper (7) |
| 1918-1920 Washington-Franklin Issue, offset, perf (5) |
| 1919-1920 Washington-Franklin Issue, rotary coil w (2) |
| 1920 Pilgrim Tercentenary Issue (3) |
| 1921 Washington-Franklin Issue, rotary coil waste, (3) |
| 1922 Washington-Franklin Issue, rotary sheet waste (2) |
| 1922-1929 Fourth Bureau Issue (51) |
| 1923 Harding Memorial Issue (1) |
| 1924 Huguenot-Walloon Tercentenary Issue (2) |
| 1925 Norse-American Issue (3) |
| 1925-1929 Issues (8) |
| 1929 Kansas-Nebraska Issue (2) |
| 1929-1937 Issues (5) |
| 1938-1954 Presidential Series (1) |
| 1938-Present Issues (52) |
| Airmail (60) |
| Essays & Proofs |
| Printers' Samples (3) |
| Hunting Permit |
| Duck Stamps (7) |
| Junior Duck Stamps (1) |
| Local (9) |
| Newspaper (9) |
| Official (9) |
| Parcel Post (21) |
| Parcel Post Postage Due (4) |
| Postage Due (18) |
| Postal Insurance (1) |
| Postmasters’ Provisionals (7) |
| Revenue |
| Consular Service Fee (1) |
| Distilled Spirits Excise Tax (1) |
| First to Third Issues (29) |
| Motor Vehicle Use (1) |
| Playing Card (1) |
| Proprietary (3) |
| Stock Transfer (8) |
| Trailer Permit Stamps (1) |
| Wines (4) |
| Savings (1) |
| Treasury Savings (1) |
| War Savings (1) |
| Special Delivery (36) |
| Telegraph (24) |
| Test Stamps (3) |
| U.S. Postal Agency in China (6) |
| U.S. Registry Exchange Labels (3) |
| Vending & Affixing Machine Perforations (1) |
