1867 (Feb. 2) Amsterdam, Holland to New York, N.Y., folded letter with red "Amsterdam 2 Feb" double circle date stamp, letter sent unpaid, London transit backstamp and black "6/Cents" debit h.s. to U.S., carried by Hapag Line Allemannia from Southampton Jun. 6 to New York arriving Jun. 21, black "N.Y. Am. Pkt. '27 or 36 U.S. Notes' Feb 21" depreciated currency datestamp, clean and Very Fine. Estimate  $300 - 400. This letter was sent in British Open mails by special paid to destination rate (prepayment optional) available only 18 months before U.S.-Dutch Treaty. This is only one of two recorded examples of this rate. See Understanding Transatlantic Mail, Vol. 2, p. 705. $0 (Image)