Lot
751 
1893, 15¢ Columbian, deep rich color, tied by well-struck "U.S. Postal Agency, Shanghai, Feb. 24 12M 94" duplex datestamp on registered cover to New York, straightline purple "Registered No." handstamp, reverse with San Francisco (3.20) transit and New York (3.26) arrival backstamps; two trivial toned perfs, Very Fine and attractive use, ex-Tows, Gibson. Scott No. 238 Estimate $500 - 750.