Lot
1919 
Offices in China, 1919, $1 on 50¢ light violet, left margin plate no. "7049" block of 6, tropicalized o.g., strong bright color, top left stamp showing dash at lower right of "1" variety, small internal crease in bottom right stamp, otherwise Fine; with 2015 P.F. certificate. Scott No. K15 $17,500.
AN ATTRACTIVE AND VERY RARE EXAMPLE OF THE $1 ON 50¢ OFFICES IN CHINA ISSUE.
Realized: $5,250