cover Two "Widler" covers, registered and used locally in Shanghai, one bears Wusih 19mm overprint in black on ½c. pair, 2c. and 3c.; the second (vertical creasing) with similar overprint on 1c., Tuchan 12mm overprint sideways on 1c., Shanghai 1c. (2) and 2c., London 1c.

Details
cover Two "Widler" covers, registered and used locally in Shanghai, one bears Wusih 19mm overprint in black on ½c. pair, 2c. and 3c.; the second (vertical creasing) with similar overprint on 1c., Tuchan 12mm overprint sideways on 1c., Shanghai 1c. (2) and 2c., London 1c.