| United States |
| 1851 Issue (4) |
| 1857 Issue (2) |
| 1861-1866 Issue (4) |
| 1867 Grilled Issue (3) |
| 1869 Pictorial Issue (1) |
| 1870-1871 National Bank Note Co. Issue, I Grill (1) |
| 1870-1871 National Bank Note Co. Issue, without gr (3) |
| 1873 Continental Bank Note Co. Issue, white wove (5) |
| 1879 American Bank Note Co. Issue, soft paper (2) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (1) |
| 1887 American Bank Note Co. Issue (2) |
| 1890-1893 Small Bank Notes Issue (1) |
| 1893 Columbian Issue (4) |
| 1894 First Bureau Issue, Unwatermarked (4) |
| 1895 First Bureau Issue, Watermarked (1) |
| 1898 First Bureau Issue, UPU colors (2) |
| 1898 Trans-Mississippi Issue (2) |
| 1901 Pan-American Issue (3) |
| 1902-1908 Second Bureau Issue (4) |
| 1904 Louisiana Purchase Issue (4) |
| 1907 Jamestown Issue (4) |
| 1908-1909 Washington-Franklin Issue, DL wmk, imper (3) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (3) |
| 1909 Commemorative Issues (6) |
| 1910 Washington-Franklin Issue, SL wmk, imperf (1) |
| 1910-1911 Washington-Franklin Issue, SL wmk, perf (1) |
| 1912 Washington-Franklin Issue, SL wmk, imperf (4) |
| 1912 Washington-Franklin Issue, SL wmk, perf 8½ co (3) |
| 1912-1914 Washington-Franklin Issue, SL wmk, perf (1) |
| 1912-1919 Washington-Franklin Issues (Sc. 405-541) (2) |
| 1913-1915 Panama-Pacific Issue (5) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (2) |
| 1914-1916 Washington-Franklin Issue, SL wmk, perf (2) |
| 1916-1917 Washington-Franklin Issue, flat plate, u (2) |
| 1916-1922 Washington-Franklin Issue, rotary plate, (9) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (3) |
| 1918-1920 Washington-Franklin Issue, offset, imper (2) |
| 1918-1920 Washington-Franklin Issue, offset, perf (4) |
| 1919 Washington-Franklin Issue, offset, perf 12½ (1) |
| 1920 Pilgrim Tercentenary Issue (4) |
| 1922-1929 Fourth Bureau Issue (14) |
| 1923 Harding Memorial Issue (2) |
| 1924 Huguenot-Walloon Tercentenary Issue (3) |
| 1925 Lexington-Concord Sesquicentenary Issue (2) |
| 1925 Norse-American Issue (4) |
| 1925-1929 Issues (8) |
| 1929 Kansas-Nebraska Issue (4) |
| 1929-1937 Issues (16) |
| 1930-1993 Issues (Sc. 682-2723A) (21) |
| 1938-1954 Presidential Series (2) |
| Airmail (9) |
| Errors, Freaks & Oddities (52) |
| Hunting Permit |
| Duck Stamps (3) |
| State Duck Stamps [to sort alpha by state then cat (3) |
| Local (2) |
| Newspaper (2) |
| Official (12) |
| Parcel Post (6) |
| Parcel Post Postage Due (1) |
| Postage Due (13) |
| Postal Stationery |
| Postal Cards (1) |
| Registration (1) |
| Revenue (9) |
| Private Die Medicine (1) |
| Special Delivery (2) |
| Special Handling (1) |