Lot
511 
(Outgoing Philadelphia) 1880-82 Philadelphia, Pa. To Yokohama, Japan. Three covers addressed to the "U.S.S. Palos" for correspondence, each franked with 1879, 2¢ vermilion + 3¢ green and tied by a different Philadelphia foreign mail cancel, San Francisco and Yokohama backstamps, one with "U.S. Postal Agency, Shanghai" double circle date stamp, Very Fine. Scott No. 183+184 Estimate $100 - 150.
Realized: $230