Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 128:
1937 (June 5-20), 6 mixed franking covers of KLM Direct and Return ”New Tariffs” Flight Amsterdam – Bandoeng – Amsterdam, including 4 with Charity pre-print ”For Benefits of National Aviation Fund”, posted into the mail at Bodegraven, Gravenhage, Leiden and Naarden, 2 with Air Mail pre-print or plain envelopes sent from Amsterdam Central Station or Scheveningen, each one franked by 2-6 Dutch adhesives and uprated by Indies Queen Wilhelmina 20c red lilac on reverse, flight markings on front and back, VF, Est. $400-$500, Scott #144, C10
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