cover 1909 registered envelope to U.S.A. (8.6 arrival) bearing 1c. pair and 2c. block of six and single, cancelled by oval "U.SA. POSTAL AGENCY/R.D./SHANGHAI, CHINA" h.s. in violet and showing matching "REGISTERED/U.S. Postal Agency,/Shanghai, China" d.s. (12.5) adjacent. Photo

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cover 1909 registered envelope to U.S.A. (8.6 arrival) bearing 1c. pair and 2c. block of six and single, cancelled by oval "U.SA. POSTAL AGENCY/R.D./SHANGHAI, CHINA" h.s. in violet and showing matching "REGISTERED/U.S. Postal Agency,/Shanghai, China" d.s. (12.5) adjacent. Photo

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