细节
cover 1922 (14 July) "CHINA" 10c. registered envelope (size H2) addressed to Huddersfield with additional 1c. (2), 4c. and 10c. tied by type I c.d.s. and with a fine strike of the rare boxed registered "SWATOW.B.P.O." h.s. at left; the envelope has been opened on two sides, fine. Photo