cover 1922 (18 Apr.) "CHINA" 10c. registered XU5 (size H2) to England, bearing "CHINA" 1c., 4c. and 10c., all cancelled by "BRITISH POST OFFICE/SWATOW" double-ring c.d.s. and showing very rare "R/SWATOW.B.P.I" registration h.s. A most attractive and desirable franking. Photo