China. (Malaya - Netherlands Indies). 1939. Envelope addressed to Batavia, Java bearing China SG 472, 25c blue (pair) tied by Shanghai date stamp '1st Sept 39', routed via Penang with 'Passed By Censor/ Em 77' (m/s 21 in black ink applied).
Very scarce censor label. Morenweiser records the white paper label from Penang only in use September 1939.