Cover franked with 12 stamps (including nine from the CORREO AÉREO overprint serie) making a total of 20.00 Pesetas for the flight Sevilla - Lakehurst. The correct postage to USA was 16.00 Pesetas, but a host of overfranked covers from this flight exist. The erroneous postage of 20.00 Pesetas for the Spain-US route was mentioned in the advertisment of F.W. von Meister, Special US representative of the Luftschiffbau Zeppelin G.m.b.H. who organized the delivery of collector's mail for the Zeppelin flight. Postage for the Sevilla-Sevilla round trip was 24.00 Pesetas.