Lot 91019 – 1930 Zeppelin Pan-American Flight. “Correo Aéreo” 25c blue with imprint at base, and “Z” 1.50b on 15c pair

1930 Zeppelin Pan-American Flight. 18 May cover to Germany, bearing marginal “Correo Aéreo” 25c blue with imprint at base, and “Z” 1.50b on 15c pair with sheet margin at right, all tied by La Paz airmail cds’s, with two Zeppelin cachets in Spanish and English below, Friedrichshafen cds on back, very fine.