Airmail cover from British India to Republic India

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

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