Lot
2371 
Offices in China, 1919, 20¢ on 10¢ orange yellow, top margin plate block of 6 with plate number 8436, o.g., never hinged (couple tiny natural gum skips), bottom left stamps with perf disk indentation, beautifully centered with bright color, Extremely Fine; with 2015 P.S.E. certificate. Scott No. K10 $1,300.