1855 (Apr. 21) New York, N.Y. to Bremen, orange buff envelope with pencil "10" prepaid rating and red "N. York U.S. Pkt. 'Paid 1' Apr 21" exchange credit cds, carried by Ocean Line Washington from New York Apr. 21 to Bremerhaven arriving May 8, Very Fine, a scarce New York 1¢ credit circular datestamp. Estimate  $150 - 200. Under the second Bremen Treaty, of the 10¢ prepaid, the U.S. was entitled to 5¢ internal fee and 4¢ sea transit fee since an American contract steamship carried the letter to Bremerhaven. Bremen was entitled to 1¢ of the international fee. $0 (Image)