1857 (Sep. 12) New York, N.Y. to Liverpool, England, blue folded letter to Captain of Ship Defiance, with "N. York Am. Pkt. '21' Sep 12" exchange cds, carried by Collins Line Atlantic from New York Sep. 12 to Liverpool arriving Sep. 23, experimental Liverpool (9.23) arrival datestamp with "1/-" shilling packet due h.s., Very Fine and choice. Estimate  $150 - 200. Liverpool experimented with a cancellation in which the name and arcs consisted of small holes made by perforating pins. The steel pins often did not penetrate the letter surface as seen in this example. The marking was despatched from the G.P.O. in London on 22 March 1856. A second marking was despatched on 2 April 1857. Examples of this marking are not common. $0 (Image)