cover 12Kr. yellow-green horizontal strip of three, right stamp with minor surface abrasion, left stamp with upper left corner chamfered and overlapped by 6Kr. light blue (clear to large margins) on 1866 (May) registered entire (ragged at top) from Nurnberg to London "via Ostend", cancelled by open cogwheel with double ring origin d.s. and showing "Chargé", "PRUSSIA/REGISTERED" c.d.s., Crown over curved "REGISTERED" and boxed "P.D." all in red. Rare and not unattractive despite faults. M.12 + 10. Photo