India 1933 (Jun 26) Karachi-Calcutta FFC, cacheted cover from Riga, Latvia, carried via Lufthansa to Berlin (Jun 27) and Istanbul, from there via Imperial Airways to India, with Karachi-Calcutta special cachet (Jul 7) and similar cachet on reverse (Jul 8), with Calcutta delivery (Jul 9). One of only 3 known from Latvia, signed on reverse and addressed to Stephen Smith.
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Type: Cover