Bidspirit auction | Worldwide Air Post Stamps and
Worldwide Air Post Stamps and Postal History - United States - 1918-23, Curtiss Jenny 16c dark green and 24c carmine rose and blue, DeHavilland Biplane 8c dark green and 24c carmine, all with full OG, NH (No.C2 has minor gum disturbed, counted as hinged), F/VF, C.v. $340, Est. $150-$200, Scott #C2-3, C4, C6