| United States |
| 1847 Issue (14) |
| 1851 Issue (21) |
| 1857 Issue (30) |
| 1861 Premiere Gravures (1) |
| 1861-1866 Issue (21) |
| 1867 Grilled Issue (30) |
| 1869 Pictorial Issue (20) |
| 1870-1871 National Bank Note Co. Issue, H Grill (7) |
| 1870-1871 National Bank Note Co. Issue, without gr (5) |
| 1873 Continental Bank Note Co. Issue, white wove (4) |
| 1875 Continental Bank Note Co. Issue, yellowish wo (1) |
| 1875 Re-issue of the 1861-1866 Issue (2) |
| 1875 Re-issue of the 1869 Pictorial Issue (12) |
| 1875 Reprints of the 1857 Issue (7) |
| 1879 American Bank Note Co. Issue, soft paper (5) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (5) |
| 1887 American Bank Note Co. Issue (3) |
| 1890-1893 Small Bank Notes Issue (6) |
| 1893 Columbian Issue (34) |
| 1894 First Bureau Issue, Unwatermarked (10) |
| 1895 First Bureau Issue, Watermarked (17) |
| 1898 First Bureau Issue, UPU colors (7) |
| 1898 Trans-Mississippi Issue (15) |
| 1901 Pan-American Issue (23) |
| 1902-1908 Second Bureau Issue (31) |
| 1904 Louisiana Purchase Issue (8) |
| 1907 Jamestown Issue (4) |
| 1908-1909 Washington-Franklin Issue, DL wmk, imper (1) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (7) |
| 1908-1910 Washington-Franklin Issue, DL wmk, perf (7) |
| 1909 Commemorative Issues (1) |
| 1909 Washington-Franklin Issue, Bluish Paper (6) |
| 1910-1911 Washington-Franklin Issue, SL wmk, perf (10) |
| 1910-1913 Washington-Franklin Issue, SL wmk, perf (8) |
| 1912 Washington-Franklin Issue, DL wmk, perf 12 (1) |
| 1912 Washington-Franklin Issue, SL wmk, imperf (2) |
| 1912 Washington-Franklin Issue, SL wmk, perf 8½ co (1) |
| 1912-1914 Washington-Franklin Issue, SL wmk, perf (6) |
| 1913-1915 Panama-Pacific Issue (16) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (5) |
| 1914 Washington-Franklin Issue, SL wmk, imperf, ro (3) |
| 1914 Washington-Franklin Issue, SL wmk, perf 10 co (4) |
| 1914-1916 Washington-Franklin Issue, SL wmk, perf (8) |
| 1915 Washington-Franklin Issue, SL wmk, perf 11 (1) |
| 1916-1917 Washington-Franklin Issue, flat plate, u (14) |
| 1916-1922 Washington-Franklin Issue, rotary plate, (5) |
| 1917 Washington-Franklin Issue, flat plate, DL wmk (3) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (23) |
| 1918 Washington-Franklin Issue, flat plate, perf 1 (4) |
| 1918-1920 Washington-Franklin Issue, offset, imper (3) |
| 1918-1920 Washington-Franklin Issue, offset, perf (3) |
| 1919 Victory Issue (4) |
| 1919-1920 Washington-Franklin Issue, rotary coil w (1) |
| 1920 Pilgrim Tercentenary Issue (1) |
| 1920 Washington-Franklin Issue, flat plate, perf 1 (2) |
| 1922 Washington-Franklin Issue, rotary sheet waste (2) |
| 1922-1929 Fourth Bureau Issue (22) |
| 1923 Harding Memorial Issue (3) |
| 1924 Huguenot-Walloon Tercentenary Issue (1) |
| 1925 Lexington-Concord Sesquicentenary Issue (1) |
| 1925 Norse-American Issue (2) |
| 1925-1929 Issues (2) |
| 1929 Kansas-Nebraska Issue (9) |
| 1929-1937 Issues (16) |
| 1938-1954 Presidential Series (13) |
| 1938-Present Issues (17) |
| Airmail (47) |
| Airmail Semi-Official (1) |
| Carrier (1) |
| Essays, Trial Colors & Proofs (57) |
| Hunting Permit |
| Duck Stamps (19) |
| Junior Duck Stamps (3) |
| State Duck Stamps (1) |
| Local (10) |
| Newspaper (32) |
| Official (67) |
| Parcel Post (16) |
| Plate Number Singles, Blocks & Coils (226) |
| Postage Due (13) |
| Postal Stationery |
| Envelopes & Wrappers (2) |
| Postmasters’ Provisionals (2) |
| Registration (1) |
| Revenue |
| Consular Service Fee (1) |
| First to Third Issues (5) |
| Marihuana Tax (3) |
| Trailer Permit Stamps (1) |
| Sanitary Fair (3) |
| Savings |
| War Savings (1) |
| Special Delivery (15) |
| Special Handling (1) |
| Telegraph (1) |
| Test Stamps (1) |
| U.S. Postal Agency in China (14) |