Auction: CSS22 - Fine Stamps and Covers of China and Hong Kong
Lot: 2783
Tibet
1933 (8 Apr.) experimental survey flight over the Himalayas, addressed to Calcutta and bearing India 1a.3p. franking tied by Purnea c.d.s. and bearing "The Houston-Mt. Everest Expdtn" vignette tied by the special illustrated cachet in violet. Fine. Only 87 covers carried. Photo
Estimate
HK$8,000 to HK$10,000