Lot
1718 
U.S. Postal Agency, Shanghai, China, Official Business, imprint on 1904 penalty cover to the Baltimore, Md. Post Office, central "Shanghai, China, U.S. Postal Sta., Aug 6" duplex postmark, Seattle, Wash. transit and receiving backstamps, Very Fine, a very scarce official business cover. Estimate $500 - 750.
Realized: $500