Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - United States - 1935 (August 20-23), PAA Wake Island - Honolulu Pacific Survey Flight legal size cover, franked by Washington 3c violet, tied upon arrival with Honolulu machine ''AUG.23.1935'' ds, black Wake Island cachet, autographed by PAA official C. Schildhauer on reverse, VF and scarce, Est. $400-$500