Offices in China, 1919, 20¢ on 10¢ orange yellow, right margin plate "8437" block of 6, o.g., never hinged (gum skips), rich color, fresh and Fine. Scott No. K10  $1,300. $0 (Image)

Offices in China, 1919, 20¢ on 10¢ orange yellow, left margin plate "13406" block of 6, o.g., central hinge remnant, top and bottom stamps never hinged, rich deep color, Fine. Scott No. K10  $725. $0 (Image)

Offices in China, 1919, 20¢ on 10¢ orange yellow, top margin plate "8435" block of 6, o.g., lightly hinged, rich color, Fine. Scott No. K10  $725. $0 (Image)

Offices in China, 1919, 20¢ on 10¢ orange yellow, left and bottom margin plate blocks of six, o.g., never hinged (small gum creases in top right stamp), rich deep color, Fine. Scott No. K10  $1,300. $0 (Image)