Lot
601 
1870, 3¢ green, horizontal pair. Tied by cork cancel on 1871 cover to Paris, France overpaying the 4c open mail rate, Boston exchange cds and Calais transit postmark with matching "10" decimes due handstamp, red London and receiving backstamps; cover tear at upper left, otherwise Very Fine, a scarce usage from Boston, Hargest had reported seeing only one cover from the Boston exchange office paying this rate. Scott No. 147 Estimate $200 - 300.
Realized: $190