Lot
501 
(Outgoing Philadelphia) 1874 Philadelphia, Pa. To Moorbihan, France. Cover franked with 1873, 10¢ brown canceled by red grid handstamp, matching "Philadelphia, Pa., May 11" cds below, manuscript "via England" endorsement, "G.B./40c" accountancy handstamp and red London transit cds on reverse, Calais cds "15" decimes due handstamp; light cover fold, Very Fine. Scott No. 161 Estimate $100 - 150.
Sender probably tried to pay the 10¢ fully prepaid via England rate per ½ ounce.
Realized: $135