Lot
1376 
Offices in China, 1919, 2¢ on 1¢ green, right margin plate no. "13222" block of six, tied by "U.S. Pos. Service, Shanghai, China, Dec 29, 1922" duplex postmarks on cover to Cleveland, O. just two days prior to the closing of the U.S. Postal Agency in Shanghai, Very Fine, a very rare plate block usage on cover; with 2014 P.F. certificate. Scott No. K1 Estimate $750 - 1,000.