| United States |
| 1847 Issue (25) |
| 1851 Issue (44) |
| 1857 Issue (36) |
| 1861 Premiere Gravures (2) |
| 1861-1866 Issue (66) |
| 1867 Grilled Issue (67) |
| 1869 Pictorial Issue (90) |
| 1870-1871 National Bank Note Co. Issue, I Grill (11) |
| 1870-1871 National Bank Note Co. Issue, without gr (34) |
| 1873 Continental Bank Note Co. Issue, white wove (11) |
| 1875 Continental Bank Note Co. Issue, yellowish wo (3) |
| 1875 Re-issue of the 1861-1866 Issue (4) |
| 1875 Re-issue of the 1869 Pictorial Issue (5) |
| 1875 Reprints of the 1857 Issue (7) |
| 1875 Reproductions of the 1847 Issue (3) |
| 1879 American Bank Note Co. Issue, soft paper (24) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (21) |
| 1887 American Bank Note Co. Issue (7) |
| 1890-1893 Small Bank Notes Issue (16) |
| 1893 Columbian Issue (57) |
| 1894 First Bureau Issue, Unwatermarked (18) |
| 1895 First Bureau Issue, Watermarked (15) |
| 1898 Trans-Mississippi Issue (26) |
| 1901 Pan-American Issue (8) |
| 1902-1908 Second Bureau Issue (19) |
| 1904 Louisiana Purchase Issue (3) |
| 1908-1909 Washington-Franklin Issue, DL wmk, imper (2) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (8) |
| 1908-1910 Washington-Franklin Issue, DL wmk, perf (1) |
| 1909 Commemorative Issues (2) |
| 1909 Washington-Franklin Issue, Bluish Paper (2) |
| 1910-1911 Washington-Franklin Issue, SL wmk, perf (3) |
| 1912 Washington-Franklin Issue, DL wmk, perf 12 (4) |
| 1912 Washington-Franklin Issue, SL wmk, perf 8½ co (1) |
| 1912-1914 Washington-Franklin Issue, SL wmk, perf (3) |
| 1913-1915 Panama-Pacific Issue (13) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (5) |
| 1914 Washington-Franklin Issue, SL wmk, compound p (1) |
| 1915 Washington-Franklin Issue, DL wmk, perf 10 (2) |
| 1916-1917 Washington-Franklin Issue, flat plate, u (14) |
| 1917 Washington-Franklin Issue, flat plate, DL wmk (1) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (12) |
| 1918 Washington-Franklin Issue, flat plate, perf 1 (5) |
| 1918-1920 Washington-Franklin Issue, offset, imper (1) |
| 1918-1920 Washington-Franklin Issue, offset, perf (4) |
| 1919-1920 Washington-Franklin Issue, rotary coil w (2) |
| 1920 Pilgrim Tercentenary Issue (5) |
| 1922 Washington-Franklin Issue, rotary sheet waste (2) |
| 1922-1929 Fourth Bureau Issue (22) |
| 1923 Harding Memorial Issue (1) |
| 1925 Norse-American Issue (1) |
| 1925-1929 Issues (5) |
| 1929 Kansas-Nebraska Issue (1) |
| 1929-1937 Issues (4) |
| 1938-1954 Presidential Series (2) |
| 1938-Present Issues (6) |
| Airmail (61) |
| Carrier (1) |
| Carrier - Semi-Official (1) |
| Essays & Proofs |
| Printers' Samples (61) |
| General Collections (2) |
| Hunting Permit |
| Duck Stamps (2) |
| Local (6) |
| Newspaper (15) |
| Official (43) |
| Parcel Post (2) |
| Parcel Post Postage Due (5) |
| Post Office Seals (1) |
| Registry (1) |
| Postage Due (29) |
| Postal Stationery (1) |
| Airmail Envelopes (2) |
| Message-Reply Postal Cards (2) |
| Official Envelopes (1) |
| Postal Cards (6) |
| Postmasters’ Provisionals (8) |
| Registration (9) |
| Revenue (23) |
| Private Die Match (8) |
| Private Die Medicine (10) |
| Private Die Perfumery (3) |
| Proprietary (6) |
| Revenue Stamped Paper (3) |
| Sanitary Fair (2) |
| Savings |
| Treasury Savings (1) |
| Special Delivery (15) |
| Tax Paid (2) |
| Cigarettes (1) |
| Snuff (1) |
| U.S. Postal Agency in China (3) |