| United States |
| 1847 Issue (13) |
| 1851 Issue (14) |
| 1857 Issue (18) |
| 1861-1866 Issue (20) |
| 1867 Grilled Issue (12) |
| 1869 Pictorial Issue (9) |
| 1870-1871 National Bank Note Co. Issue, H Grill (1) |
| 1870-1871 National Bank Note Co. Issue, without gr (2) |
| 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 Reprints of the 1857 Issue (3) |
| 1879 American Bank Note Co. Issue, soft paper (3) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (3) |
| 1887 American Bank Note Co. Issue (4) |
| 1890-1893 Small Bank Notes Issue (6) |
| 1893 Columbian Issue (18) |
| 1894 First Bureau Issue, Unwatermarked (3) |
| 1895 First Bureau Issue, Watermarked (8) |
| 1898 First Bureau Issue, UPU colors (3) |
| 1898 Trans-Mississippi Issue (8) |
| 1901 Pan-American Issue (8) |
| 1902-1908 Second Bureau Issue (11) |
| 1904 Louisiana Purchase Issue (4) |
| 1907 Jamestown Issue (2) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (2) |
| 1908-1910 Washington-Franklin Issue, DL wmk, perf (6) |
| 1909 Commemorative Issues (2) |
| 1909 Washington-Franklin Issue, Bluish Paper (1) |
| 1910-1911 Washington-Franklin Issue, SL wmk, perf (5) |
| 1910-1913 Washington-Franklin Issue, SL wmk, perf (1) |
| 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 (11) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (9) |
| 1914-1916 Washington-Franklin Issue, SL wmk, perf (2) |
| 1915 Washington-Franklin Issue, DL wmk, perf 10 (1) |
| 1916-1917 Washington-Franklin Issue, flat plate, u (11) |
| 1916-1922 Washington-Franklin Issue, rotary plate, (8) |
| 1917 Washington-Franklin Issue, flat plate, DL wmk (1) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (9) |
| 1918 Washington-Franklin Issue, flat plate, perf 1 (2) |
| 1918-1920 Washington-Franklin Issue, offset, imper (2) |
| 1918-1920 Washington-Franklin Issue, offset, perf (1) |
| 1919-1920 Washington-Franklin Issue, rotary coil w (3) |
| 1920 Pilgrim Tercentenary Issue (4) |
| 1920 Washington-Franklin Issue, flat plate, perf 1 (2) |
| 1921 Washington-Franklin Issue, rotary coil waste, (2) |
| 1922-1929 Fourth Bureau Issue (40) |
| 1924 Huguenot-Walloon Tercentenary Issue (1) |
| 1925 Lexington-Concord Sesquicentenary Issue (1) |
| 1925 Norse-American Issue (3) |
| 1925-1929 Issues (15) |
| 1929 Kansas-Nebraska Issue (15) |
| 1929-1937 Issues (15) |
| 1938-1954 Presidential Series (13) |
| 1938-Present Issues (50) |
| Accumulations (6) |
| Airmail (41) |
| Assortments (1) |
| Booklets (3) |
| Carrier (1) |
| Carrier - Semi-Official (2) |
| Christmas Seals (1) |
| Commemorative Panels (1) |
| Computer-Vended Postage (1) |
| Dealers Stocks (4) |
| Errors, Freaks & Oddities (5) |
| Essays, Trial Colors & Proofs (1) |
| Face Value Lots (17) |
| General Collections (29) |
| Hunting Permit |
| Duck Stamps (33) |
| Junior Duck Stamps (1) |
| State Duck Stamps (2) |
| Local (10) |
| Miscellaneous Back-of-the-Book (5) |
| Cinderellas (1) |
| Newspaper (6) |
| Official (11) |
| Parcel Post (7) |
| Parcel Post Postage Due (1) |
| Plate Number Singles, Blocks & Coils (3) |
| Post Office Seals (1) |
| Postage Due (28) |
| Postal History Collections (7) |
| Postal Stationery |
| Envelopes & Wrappers (7) |
| General Collections (2) |
| Message-Reply Postal Cards (1) |
| Postal Cards (4) |
| Postmasters’ Provisionals (2) |
| Registration (1) |
| Revenue |
| Beer (1) |
| Consular Service Fee (1) |
| First to Third Issues (2) |
| General Collections (4) |
| Narcotic Tax (1) |
| Private Die Medicine (3) |
| Savings |
| Postal Savings (1) |
| Souvenir Cards (1) |
| Souvenir Pages (1) |
| Special Delivery (8) |
| Special Handling (1) |
| Test Stamps (3) |
| U.S. Postal Agency in China (15) |
| Vending & Affixing Machine Perforations (1) |
| Year Sets Collections (2) |
