cover 12Kr. lilac and 6Kr. pale blue both with good even margins on neat 1868 envelope from Starnberg to England, lightly cancelled by a single strike of the open cogwheel "501" with half circle origin d.s. (17/8) and boxed "P.D" (in red) adjacent, showing arrival c.d.s. (20/8) on reverse; the cover has been bleached to reduce rust toning. Rare and attractive. M.18 + 16. Photo