Lot
331 
1924 U.S.S. Blackhawk, Panama. Purple duplex tying 1914 1¢ green, booklet pair on cover to Fitchburg, Mass., manuscript notation on reverse "c/o Postmaster, Seattle, Wash.", light overall toning & couple light stains, booklet pane of 6 (no photo). Scott No. 498e Estimate $50 - 75.
Realized: $26