cover 12c Black (17), horizontal pair and three singles, mostly clear to large margins except one stamp cut in at left, another stamp creased prior to use, faint red grids, used on 1857 buff cover to Brunswick, Germany, red "N.York 14 Br. Pkt. Paid May 27" exchange h.s., red "Paid" straight line h.s., red boxed "Aachen/Franco" h.s., ms. "Prussian Closed Mail", German backstamp, believed carried by the Cunard Line's packet Asia, this cover paid a double 30c rate to Germany by Prussian Closed Mail, one 12c stamp has been lifted, pressed and replaced, otherwise very fine, a scarce 12c 1851 Issue multiple franking paying a double rate to Germany, with 1991 P.F. certificate photo