1849 (Jul. 27) London, England to Castine, Me., folded letter with red London (7.27) origin datestamp and matching "5/Cents" credit h.s. and manuscript "1/" prepaid rating for the transatlantic packet fee, carried by Cunard Line America from Liverpool Jul. 28 to New York arriving Aug. 9, New York red "Br-Packet 'Paid 24' 10 Aug" exchange cds, Very Fine. Estimate  $200 - 300. Letter posted at Lombard Street post office, London. Earliest New York exchange office circular datestamp showing British packet service. Marking recorded in use from August - December 1849 and is a seldom seen marking. $0 (Image)