Sales #3020-23
Sale 3020 - The Elmer Campbell Collection of Germany and German Areas
| Show all lots | 534 |
| Philatelic Literature | 2 |
| U.S. Zeppelin Flights | 2 |
| United States and Foreign Airmail Covers | 36 |
| Worldwide Country Collections | 145 |
| Foreign Stamps and Covers | 349 |
Sale 3021 - The "Argent" Collection of 1875-1901 Mint United States Stamps
| Show all lots | 100 |
| United States 19th Century Stamps and Postal History | 95 |
| 1901 Pan-American Exposition Issue (294-299) | 5 |
Sale 3022 - Session 1 - United States Stamps and Covers
| Show all lots | 966 |
| Proofs and Essays | 7 |
| United States 19th Century Stamps and Postal History | 313 |
| United States 20th Century Stamps and Postal History | 186 |
| United States "Back of the Book" Stamps and Postal History | 340 |
| United States Revenue Issues | 54 |
| Confederate States General Issues | 4 |
| U.S. Territories, Possessions and Foreign Offices | 62 |
Sale 3022 - Session 2 - British Commonwealth and Foreign Stamps and Covers; United States Postal History
| Show all lots | 985 |
| British Commonwealth Stamps and Covers | 223 |
| United States Postal History | 106 |
| Union and Confederate States Civil War Covers | 5 |
| U.S. Territories, Possessions and Foreign Offices | 41 |
| United States and Foreign Airmail Covers | 111 |
| Foreign Stamps and Covers | 499 |
Sale 3022 - Session 3 - United States, British Commonwealth, and Foreign Collections
| Worldwide Country Collections | 444 |
| British and Foreign Postal History Collections and Accumulations | 29 |
| Worldwide Collections and Various | 125 |
| Worldwide Regional Collections | 23 |
| Topical Collections | 22 |