1849 (Jun. 12) Cambridge, Mass. to Sornetau, Switzerland, folded letter with blue "Cambridge Ms. Jun 12" cds and matching "Paid" and "5" rating h.s., carried by Cunard Line Niagara from New York Jun. 13 to Liverpool arriving Jun. 25, London (6.25) backstamp and red "Colonies & Art. 13" framed h.s., Boulognes (7.26) entry cds, manuscript "40" kreuzer postage due, Very Fine. Estimate  $150 - 200. Letter prepayment covered transit charge to British steamship in New York harbor. From there, letter was unpaid. London debited France 3s4d per 30 grams bulk letter weight under accounting letter bill Article 13. Letter entered France at Boulogne-sur-Mer with the entry marking shown applied at Paris, showing the substitution of Boulogne for Calais when new railroad completed. Under French-Berne Treaty of 1845, France was entitled to 56 décimes per 30 grams bulk letter weight, or 14 décimes for this letter. Swiss marked letter for 40 kreuzer postage due. $0 (Image)