| United States |
| 1851 Issue (8) |
| 1857 Issue (9) |
| 1861-1866 Issue (19) |
| 1867 Grilled Issue (13) |
| 1869 Pictorial Issue (10) |
| 1870-1871 National Bank Note Co. Issue, H Grill (1) |
| 1870-1871 National Bank Note Co. Issue, without gr (6) |
| 1873 Continental Bank Note Co. Issue, white wove (13) |
| 1875 Continental Bank Note Co. Issue, yellowish wo (1) |
| 1875 Re-issue of the 1869 Pictorial Issue (1) |
| 1879 American Bank Note Co. Issue, soft paper (7) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (3) |
| 1887 American Bank Note Co. Issue (1) |
| 1890-1893 Small Bank Notes Issue (4) |
| 1893 Columbian Issue (8) |
| 1894 First Bureau Issue, Unwatermarked (6) |
| 1895 First Bureau Issue, Watermarked (8) |
| 1898 First Bureau Issue, UPU colors (2) |
| 1898 Trans-Mississippi Issue (7) |
| 1901 Pan-American Issue (7) |
| 1902-1908 Second Bureau Issue (13) |
| 1903-1977 Issues (1) |
| 1904 Louisiana Purchase Issue (2) |
| 1907 Jamestown Issue (2) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (2) |
| 1909 Commemorative Issues (7) |
| 1909 Washington-Franklin Issue, Bluish Paper (1) |
| 1910 Washington-Franklin Issue, SL wmk, imperf (2) |
| 1910-1913 Washington-Franklin Issue, SL wmk, perf (4) |
| 1912 Washington-Franklin Issue, DL wmk, perf 12 (1) |
| 1912 Washington-Franklin Issue, SL wmk, imperf (3) |
| 1912 Washington-Franklin Issue, SL wmk, perf 8½ co (1) |
| 1912-1914 Washington-Franklin Issue, SL wmk, perf (1) |
| 1912-1917 Washington-Franklin Issues (1) |
| 1913-1915 Panama-Pacific Issue (7) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (5) |
| 1914 Washington-Franklin Issue, SL wmk, perf 10 co (4) |
| 1914-1916 Washington-Franklin Issue, SL wmk, perf (7) |
| 1915 Washington-Franklin Issue, DL wmk, perf 10 (1) |
| 1916-1917 Washington-Franklin Issue, flat plate, u (6) |
| 1916-1922 Washington-Franklin Issue, rotary plate, (5) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (5) |
| 1918-1920 Washington-Franklin Issue, offset, imper (5) |
| 1918-1920 Washington-Franklin Issue, offset, perf (4) |
| 1919-1920 Washington-Franklin Issue, rotary coil w (1) |
| 1920 Pilgrim Tercentenary Issue (4) |
| 1921 Washington-Franklin Issue, rotary coil waste, (1) |
| 1922-1929 Fourth Bureau Issue (14) |
| 1923 Harding Memorial Issue (1) |
| 1925 Lexington-Concord Sesquicentenary Issue (2) |
| 1925 Norse-American Issue (3) |
| 1925-1929 Issues (7) |
| 1929 Kansas-Nebraska Issue (6) |
| 1929-1937 Issues (17) |
| 1931-1956 Issues (10) |
| 1938-1954 Presidential Series (3) |
| 1975-1997 Issues including Modern Errors (13) |
| Airmail (27) |
| Carrier (1) |
| General Collections (5) |
| Hunting Permit |
| Duck Stamps (21) |
| State Duck Stamps [to sort alpha by state then cat (8) |
| Newspaper (10) |
| Official (8) |
| Parcel Post (2) |
| Parcel Post Postage Due (2) |
| Parcel Post, Booklets, Carriers, Sanitary Fair (1) |
| Postage Due (14) |
| Postal Stationery |
| Official Envelopes (4) |
| Postal Cards (7) |
| Postmasters’ Provisionals (1) |
| Registration (2) |
| Revenue (7) |
| Proprietary (1) |
| Revenue Stamped Paper (3) |
| Sanitary Fair (1) |
| Savings (1) |
| Souvenir Cards (1) |
| Special Delivery (7) |
| State Revenue (1) |
| U.S. Postal Agency in China (3) |
