1932 LUPOSTA flight card franked with the complete set of specially prepared overprints, registered from Danzig to Basel, v.f., with arrival pmk (Image)

Est.$150

1932 LUPOSTA flight card addressed to Luxembourg, franked with the complete set of five overprints, v.f., signed Schuler (Image)

Est.$150

1932 LUPOSTA flight, three cards, two franked with the complete set of specially prepared overprints, another mixed with regular Air Post adhesives, each with appropriate cachet, v.f. (Image)

Est.$200

1932 LUPOSTA flight, cover and card, the latter to France, each with regular Air Post adhesives, special cachets, the latter Ronne drop (Image)

Est.$150