Cover of Special Flight. Route: Amsterdam-Bandoeng-Amsterdam by "Postjager" (departure Amsterdam December 9, 1933), engine failure in Italy, and taken over by "Pelikaan". Arrived in Bandoeng December 22 and left Bandoeng at December 26. Arrived in Amsterdam December 30, 1933. Special Netherlands and Dutch East Indies triangular airmail stamps were issued for these flights. Both are on the shown postcard. Source: Airmails of New Zealand, volume 2 (1986) compiled by Douglas A Walker, and The New Zealand Airmail Catalogue, (2nd Edition, 1994) by James Stapleton. Both are published by the Air Mail Society of New Zealand.