1852 (Oct. 30) New York, N.Y. to Wohlen, Switzerland, blue folded letter with red "N.York Paid Oct 30" exchange cds and pencil "30" cent prepaid rating, carried by Collins Line Baltic from New York Oct. 30 to Liverpool arriving Nov. 10, red Aachen transit backstamp and matching "Franco" straightline, blue manuscript "fr. Ausg. Grenz" marking and large manuscript "3" kr. debit to Switzerland, Wohlen (11.15) arrival dcds and red crayon "10" rappen due rating, Very Fine, This letter was on the first voyage from the United States to carry Prussian Closed Mail. Estimate  $1,000 - 1,500. Letter paid single Prussian closed mail rate of 30¢ only to Prussia and not to Switzerland, which was allowed under the convention. Aachen exchange office marked "FRANCO" to show letter paid to Germany and "fr. Ausg. Grenz." in blue ink to indicate that it was paid only to the German border with Switzerland. Germans debited 3 kreuzer to Swiss for the transit to Switzerland, and the Swiss marked 10 rappen postage due. One of the 4,000 Prussian closed mail letters carried on this voyage. $0 (Image)