(Outgoing Philadelphia) 1859 Philadelphia, Pa. To Wurttemberg, Germany. Unpaid double rate cover sent by Prussian closed mail, with "Philadelphia, Pa., Dec 20, 1859" octagon date stamp and manuscript "60" rate, "N. York Br. Pkt., 46, Dec 21" exchange cds and blue manuscript "1-30" gulden/kreuzer due, reverse with red Aachen transit cds, Very Fine. Estimate  $200 - 300. $0 (Image)