USA – $2.00 on $1.00 Offices in China, Double Surcharge – worth $10,000

$2.00 on $1.00 Offices in China, Double Surcharge (K16a). Lightly hinged, deep rich color on bright fresh paper, wide margins, wide-spaced doubling of the surcharge

The Office in China double surcharge error occurred during the overprinting of stamps for use at the U.S. Postal Agency in Shanghai. It has been reported that the errors were among the last stamps to be put on sale before the agency closed on December 31, 1922. The Deputy Postal Agent, Mr. E. H. Murray, knew of the error but allowed it to be put on sale, as he was retiring and the Agency was closing.

Ex Floyd. Small purple backstamp. With 1999 P.F. certificate