Offices in China, 1919, 20¢ on 10¢ orange yellow. O.g., never hinged, beautifully centered amid large margins, rich radiant color, Extremely Fine. Scott No. K10  $150. $0 (Image)

Offices in China, 1919, 20¢ on 10¢ orange yellow. Top margin single with plate number, o.g., never hinged, well centered amid large margins, rich color, very fresh, Very Fine and choice. Scott No. K10  $150. $0 (Image)

Offices in China, 1919, 20¢ on 10¢ orange yellow. Bottom margin plate block of 6, o.g., never hinged, large margins, deep rich color, fresh and pristine, Very Fine and choice, an beautiful plate block. Scott No. K10  $1,300. $0 (Image)

Offices in China, 1919, 20¢ on 10¢ orange yellow. Light oval cancel, exceptional centering, vibrant color, Extremely Fine. Scott No. K10  $70. $0 (Image)