Offices in China, 1919-22, 2¢-$2 complete, including K8a & K11a and three U.S. issues on piece used in Shanghai, full o.g. to lightly hinged, all fresh with strong bright colors, a Very Fine set; K5 and up with 1980's A.P.S. or P.F. certificate. Scott No. K1-K18  $2,425+. $0 (Image)