Hong Kong Treaty Ports Shanghai

Hong Kong Treaty Ports Shanghai 1922 (10 May) a registered cover from Shanghai per SS "Porthos" to Switzerland, bearing Hong Kong KGV overprinted "CHINA" two each of 1c., 4c. and 10c., tied by registered / Shanghai Br.P.O. oval, a boxed Shanghai B.P.O. registration cachet (Proud R10) with manuscript No. 4653, a large blue crayon "546" on middle of envelope, on the reverse side with Port Taufiq transit (15.6). Geneve arrived (21.6) cds alongside. Shanghai registration cachet only known in 1922, scarce.

Estimate:$382.27

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