German States – Hanover. 1858 (March 6). Cover front from Emden to Baltimore, paying the internal rate with 1856-57 1/15th or 2sgr featuring a spectacular left sheet-margin example (tiny tear at top very slightly touching the design), tied by blue cds on departure, repeated adjacent, 25c credited to the U.S. with Aachen red cds, „11“ red crayon denoting payment of 11 sgr, carried by the Inman „City of Baltimore“, and red „N. York/Br. Pkt/30/PAID“ marking; a rare combination franking between cash and partial payment with a stamp.
Note: According to the 1852 Prussian-U.S. Postal Convention, the single rate was 30 cents per 1/2oz, including 5c for the U.S., 5c for Prussia and 20c comprising transit fees between both countries.