Lot
1826 
Official Seal, 1907, blue, singles with toned paper pair, tied by "United States, Sea Post, Sep 9, 1914" duplexes on reverse of cover bearing 5¢ blue along tied by duplex to Denmark, endorsed "Per S.S. Phila" a top left, pencil "Received unsealed Sea Post #2" at left, Danish arrival backstamp, Very Fine and possible unique U.S. sea post use. Scott Nos. OX13, OX13e Estimate $300 - 400.
Realized: $260