Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Spain - Zeppelin Flight - 1930 (May 20-31), three 1st SAF covers from Seville to US, franked by 2, 5 or 24 King Alfonso adhesives, tied by ''18.MAY.30'' ds, red Spanish confirmation markings, green Lakehurst ''May - 31.1930'' machine arrival hs on reverse of each cover, F/VF, Sieger #58B, C.v. €375, Est. $200-$250