Bidspirit auction | Worldwide Aerophilately - Argentina

Worldwide Aerophilately - Argentina - 1930, blue or green Zeppelin overprints on the First Air Mail - Birds issue, 20c-3.60p and 20c-1.80p, two complete sets of five, overprinted ''Muestra'' (Specimen) in brown violet, each one without gum, VF, Sc. #C20-24, C25-29