cover 3Kr. dull blue (Plate 1) showing two thick dividing lines at top, with good to large margins on other sides, on 1850 entire (sample without value) from Mainz to Miltzenburg tied by pen cross and double ring "WURZBURG 13 MAR 1850" d.s. and showing half circle arrival d.s. on reverse; some light staining and a heavy filing crease is well away from the adhesive. Fine and very scarce. Signed Pfenninger. M.2 III; D.M. 2200. Photo