1926 (4 Apr) Calcutta-Tokyo First Flight cover franked with 1a and 2a George V adhesives (uncanceled) over the Thai-themed "Avail Air Mails and Save Time" label and addressed to Hector Smith c/o Royal Danish Consul in Tokyo, Japan, with "By Danish Fokker Aeroplanes 1925, Calcutta to Tokyo" flight cachet, two "KGL Dansk Konsulat Calcutta" handstamps on both sides, with "Calcutta to Tokyo 3/4/26" dated and initialed at bottom left, complete descriptive label affixed on back of the cover, fine and rare, only 31 covers were carried by the Danish fliers