cover 3c Dull Red (11), just clear to ample margins, fine, tied by absolutely perfect sharp clear strike of 'Louisville & Cincinnati Mail Line Aug 16' waterway route agent d.s. on buff cover to Conn., lacking small portion of flap, extremely fine, ex Grunin, an extraordinary strike of this very scarce marking photo

Details
cover 3c Dull Red (11), just clear to ample margins, fine, tied by absolutely perfect sharp clear strike of 'Louisville & Cincinnati Mail Line Aug 16' waterway route agent d.s. on buff cover to Conn., lacking small portion of flap, extremely fine, ex Grunin, an extraordinary strike of this very scarce marking photo