Robert A. Siegel Auction Galleries
U.S. Essays, Proofs and Specimens
1875 Reprint of 1857-60 Issue
U.S. Essays, Proofs and Specimens
U.S. Postmasters' Provisionals
U.S. Essays, Proofs and Specimens
U.S. Postmasters' Provisionals
1847 Issue
1851-56 Issue
1857-60 Issue
1875 Reprint of 1857-60 Issue
1861-66 Issue
1867-68 Grilled Issue
1875 Re-Issue of 1861-66 Issue
1869 Pictorial Issue
1875 Re-Issue of 1869 Pictorial Issue
U.S. Essays, Proofs and Specimens
1870-88 Bank Note Issues
1875-85 Bank Note Issue Special Printings
U.S. Essays, Proofs and Specimens
1870-88 Bank Note Issues
1875-85 Bank Note Issue Special Printings
1870-88 Bank Note Issues
Columbian Issue
1894-98 Bureau Issues
Trans-Mississippi Issue
U.S. Essays, Proofs and Specimens
Trans-Mississippi Issue
Pan-American Issue
U.S. Essays, Proofs and Specimens
1902-08 Issue
Vending & Affixing Machine Perforations
1902-08 Issue
1894-98 Bureau Issues
1902-08 Issue
Washington-Franklin Issues
20th Century Commemorative Issues
Washington-Franklin Issues
20th Century Commemorative Issues
Vending & Affixing Machine Perforations
20th Century Commemorative Issues
Washington-Franklin Issues
20th Century Commemorative Issues
Washington-Franklin Issues
20th Century Commemorative Issues
Washington-Franklin Issues
20th Century Commemorative Issues
Air Post
Special Delivery
Postage Due
Offices in China
Officials
Newspapers & Periodicals
Parcel Post (Q, JQ, JE)
Postal Stationery
Carriers, Locals and Independent Mails
Revenues
Hunting Permits
Confederate States and Civil-War Related
Canal Zone
Cuba
Hawaii
1851-56 Issue
1870-88 Bank Note Issues
Collections and Accumulations
20th Century Commemorative Issues
Collections and Accumulations
Postal Stationery
Collections and Accumulations