Offices in China, 1919, 12¢ on 6¢ Red Orange, choice centering with large, perfectly balanced margins, truly radiant color and immaculate, never hinged o.g., Extremely Fine to Superb. An extraordinary stamp; with 2010 P.F. Graded certificate (XF-S 95, SSV $1,450). Scott No. K6  $220. $0 (Image)