KGV, 1931, Air Mail, 1a , AMERICAN WORLD FLIERS flight by Biplane "Carried by Messrs Hadley & Pratt Across the Bay to, AKYAB in Stearman Biplane the N. R. 8809",  signed by pilot John Pratt & Ross Hadley on front, Cancelled with PARK STREET – CALCUTTA 28 Mar 31, Delivered at Calcutta  on 5 APR 31. Violet pictorial cachet and instruction mark “Held up till 1^st April, Owing to Unforeseen Circumstances", Good Condition, Very Rare