Offices in China, 1922, 2¢ on 1¢ green, top plate number "11792" block of six, nicely centered with strong color, o.g., never hinged, top center stamp with small inclusion, Very Fine; with 2004 P.S.E. certificate. Scott No. K17  $1,750. In June 1922, the Agency ran out of the two lower values. The Bureau approved local overprints until supplies arrived. $0 (Image)

Offices in China, 1922, 2¢ on 1¢ green, used with 1919, 2¢ on 1¢ green (K1) and 1922, 4¢ on 2¢ carmine (K18), all tied by "U.S. Pos. Service, Shanghai, China, Aug. 30, 1922" duplex on Nanking railway contractor cover to local Shanghai address; file fold at center, F.-V.F. Scott No. K17 + K1, K18  Estimate $500 - 750. AN EXTREMELY SCARCE FRANKING COMBINING BOTH THE BUREAU AND LOCAL SURCHARGES. $0 (Image)