| United States |
| 1847 Issue (Scott 1-2) (14) |
| 1851-56 Issue (Scott 5-17) (34) |
| 1857-60 Issue (Scott 18-39) (39) |
| 1861-66 Issue (Scott 56-78) (19) |
| 1867-68 Grilled Issue (Scott 79-101) (23) |
| 1869 Pictorial Issue (Scott 112-122) (19) |
| 1870-71 National Bank Note Co. Issues (Scott 134-1 (16) |
| 1873-75 Continental Bank Note Co. Issue (Scott 156 (9) |
| 1875 Re-Issue of 1861-66 Issue (Scott 102-111) (10) |
| 1875 Re-Issue of 1869 Pictorial Issue (Scott 123-1 (14) |
| 1875 Reprint of 1857-60 Issue (Scott 40-47) (9) |
| 1875 Reproduction of 1847 Issue (Scott 3-4) (5) |
| 1879-88 American Bank Note Co. Issues (Scott 182-2 (25) |
| 1890-93 Issue (Scott 219-229) (7) |
| 1893 Columbian Issue (Scott 230-245) (32) |
| 1894-98 Bureau Issues (Scott 246-284) (21) |
| 1898 Trans-Mississippi Issue (Scott 285-293) (21) |
| 1901 Pan-American Issue (Scott 294-299) (11) |
| 1901 Pan-American Issue, Inverts (Scott 294a, 295a (8) |
| 1902-08 Issues (Scott 300-320) (19) |
| 1904 Louisiana Purchase, 1907 Jamestown Issues (Sc (4) |
| 1908-10 Washington-Franklin Issues (Scott 331-356) (22) |
| 1909 Bluish Paper Issue (Scott 357-366) (20) |
| 1910-13 Washington-Franklin Issue (Scott 374-396) (18) |
| 1912-14 Washington-Franklin Issue, incl. compound (11) |
| 1913-15 Panama-Pacific Issue (Scott 397-404) (6) |
| 1913-15 Washington-Franklin Issues (Scott 424-461) (39) |
| 1916-17 Issues (Scott 462-480) (13) |
| 1917-19 Issues (Scott 481-524) (49) |
| 1918-22 Offset and Rotary Issues (Scott 525-550) (17) |
| 1922-29 Issues (Scott 551-621) (22) |
| 1925 and Later Issues (15) |
| 24c Inverted Jenny, Mint Never-Hinged, Position 49 (1) |
| Air Post (Scott C1-C10A) (11) |
| Air Post, Graf Zeppelin Issue (Scott C13-C15) (39) |
| Air Post, Later Issues (Scott C18-C119a) (15) |
| Carriers and Locals (2) |
| Collections and Accumulations (31) |
| Confederate States |
| Confederate States: Flag-of-Truce, POW, Blockade, (7) |
| Confederate States: General Issues off-Cover (39) |
| Confederate States: General Issues on-Cover, Litho (29) |
| Confederate States: General Issues on-Cover, Typog (18) |
| Confederate States: Group Lots (6) |
| Confederate States: Independent and CSA use of US (19) |
| Confederate States: Postmasters' Provisionals (16) |
| Confederate States: Stampless Covers (3) |
| Confederate States: Virginia College Covers (8) |
| Essays, Proofs and Specimens (41) |
| Group Lots by Issue (14) |
| Hawaii: 1869 thru Later Issues (17) |
| Hawaii: Kamehameha III Issues thru Numerals (36) |
| Newspapers and Periodicals (4) |
| Offices in China (9) |
| Official Special Printings (20) |
| Officials (6) |
| Parcel Post (7) |
| Postage Due (6) |
| Postal Stationery (4) |
| Postmasters' Provisionals (11) |
| Revenues (24) |
| Special Delivery (10) |