cover 18Kr. brick-red with good to large margins on three sides, very close at top, on small 1869 envelope to Oxford, England, clearly cancelled by single ring "STUTTGART 7/11" d.s. with another strike adjacent and showing arrival c.d.s. (9/11) on reverse. A quite exceptional usage from Württemberg and almost certainly unique. Signed Pfenninger. M.19; D.M. 6500 +. Photo in colour