1871 Otto, Second Eagle, 3d pale reddish lilac, thin paper, but imperf. THE UNISSUED ESSAY WITHOUT DOT ON EAGLE'S LEG (as SG 24). VF/M example, large part OG. A rare stamp. Opinion: Eichele BPB (Essay, Plate L, 1st Essay, Rare). (cv£550). See clickable image of certificate below.