Qty 6 USA Air-Mail Stamps, Misc Denominations - Oahu Auctions
USA 1949 6-cent Wilbur and Orville Wright Air Mail Postage Stamp, Catalog No C45 : Toys & Games
Daniel F. Kelleher Auctions, LLC Sale - 778 Page 161
Auction No 144 - Prestige Philately
Qty 25+ USA Air-Mail Stamps, Misc Denominations
What is the value of old post stamps? - Quora
C46 - 1952 80c Airmail Diamond Head - Mystic Stamp Company
Sale 2953 - United States and Worldwide Stamps and Postal History by H.R. Harmer - Issuu
Qty 6 USA Air-Mail Stamps, Misc Denominations - Oahu Auctions
Qty 150+ Tonga Stamps, Misc Denominations - Oahu Auctions
File:1934 US Airmail Stamped Envelope Indicium - 6 cents.jpg - Wikimedia Commons
Qty 6 USA Air-Mail Stamps, Misc Denominations - Oahu Auctions
Qty 6 USA Air-Mail Stamps, Misc Denominations - Oahu Auctions
Sale 3042 - United States, British Commonwealth, and Worldwide Stamps, Covers, and Collections by H.R. Harmer - Issuu
Qty 6 USA Air-Mail Stamps, Misc Denominations - Oahu Auctions