1924, 3¢ violet coil, horizontal pair, o.g., never hinged, virtually perfect centering, gorgeous deep rich color, Post Office fresh, Superb, a magnificent pair, this being one of seven pairs to obtain this grade with only one higher; with 2007 P.S.E. Graded certificate (Superb 98, SMQ $320). Scott No. 600  $26. $0 (Image)