This lot will be sold as number 50039A during the public auction.
1913 (Aug 24) Pioneer airmail during World Expo: Special 1fr rose-red airmail card with 10c red tied by GAND 24.8.13 EXPO machine cancel, purple "POSTE AERIENNE / BLANKENBERGHE" and violet "Aéroplanes / de BROUCKERE / DEPERDUSIN" cachets adjacent, addressed to Hall, Germany, very rare, apparently 2 cards known from this flight on the 24th (Müller 10'000pts). (Image)