| United States |
| 1847 Issue (37) |
| 1851 Issue (73) |
| 1857 Issue (10) |
| 1861 Premiere Gravures (4) |
| 1861-1866 Issue (198) |
| 1867 Grilled Issue (100) |
| 1869 Pictorial Issue (156) |
| 1870-1871 National Bank Note Co. Issue, without gr (44) |
| 1873 Continental Bank Note Co. Issue, white wove (39) |
| 1875 Re-issue of the 1861-1866 Issue (3) |
| 1875 Re-issue of the 1869 Pictorial Issue (6) |
| 1875 Reprints of the 1857 Issue (18) |
| 1875 Reproductions of the 1847 Issue (6) |
| 1879 American Bank Note Co. Issue, soft paper (64) |
| 1881-1882 American Bank Note Co. Issue, re-engrave (31) |
| 1887 American Bank Note Co. Issue (8) |
| 1890-1893 Small Bank Notes Issue (24) |
| 1893 Columbian Issue (33) |
| 1894 First Bureau Issue, Unwatermarked (27) |
| 1895 First Bureau Issue, Watermarked (1) |
| 1898 Trans-Mississippi Issue (20) |
| 1902-1908 Second Bureau Issue (4) |
| 1904 Louisiana Purchase Issue (2) |
| 1908-1909 Washington-Franklin Issue, DL wmk, perf (7) |
| 1913-1915 Panama-Pacific Issue (3) |
| 1913-1915 Washington-Franklin Issue, SL wmk, perf (1) |
| 1917-1919 Washington-Franklin Issue, flat plate, u (4) |
| 1918 Washington-Franklin Issue, flat plate, perf 1 (1) |
| 1919 Victory Issue (1) |
| 1920 Pilgrim Tercentenary Issue (1) |
| 1922-1929 Fourth Bureau Issue (42) |
| 1922-1991 Issues (36) |
| 1925-1929 Issues (2) |
| 1929-1937 Issues (33) |
| 1938-1954 Presidential Series (4) |
| 1938-Present Issues (22) |
| Airmail (11) |
| Airmail Special Delivery (1) |
| Carrier (8) |
| Carrier - Semi-Official (1) |
| Carriers and Locals (2) |
| Christmas Seals (27) |
| General Collections (1) |
| Local (1) |
| Miscellaneous Back-of-the-Book (3) |
| Newspaper (51) |
| Official (61) |
| Parcel Post (1) |
| Parcel Post Postage Due (1) |
| Post Office Seals (6) |
| Registry (2) |
| Postage Due (23) |
| Postal Stationery (27) |
| Message-Reply Postal Cards (6) |
| Postal Cards (21) |
| Postmasters’ Provisionals (36) |
| Revenue (83) |
| Customs Fees (2) |
| Playing Card (4) |
| Private Die Canned Fruit (1) |
| Private Die Match (32) |
| Private Die Medicine (52) |
| Private Die Perfumery (16) |
| Proprietary (16) |
| Revenue Stamped Paper (17) |
| Stock Transfer (3) |
| Revenue - First Issue (55) |
| Revenue - General (Unadopted) Essays (126) |
| Sanitary Fair (5) |
| Savings |
| Postal Savings (1) |
| Special Delivery (3) |
| Tax Paid (2) |
| Cigars (1) |
| Manufactured Tobacco (8) |
| Snuff (1) |
| Telegraph Stamps (15) |
