Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Netherlands - 1933 (December 18-22), group of 7 pre-printed ''Zilvermeeuw'' Catapult Flight covers ( one with manuscript) addressed to Batavia, Bandoeng, Medan, Soerabaya and etc., posted into the mail at Amsterdam Central Station, Domburg, Gravenhage, Hilversum, Nijmegen, Scheveningen and Voorburg, all appropriate markings and arrival ds, mostly F/VF, Est. $300-$350, Scott #C10