State Dept., 1875 Special Printing, 1¢ bluish green, double "Specimen" overprint. Without gum as issued, fresh with deep rich color, slightly nibbed perfs at lower right not mentioned on certificate, F.-V.F., a rare double overprint variety; with 2006 P.S.E. certificate. Scott No. O57SDd  $3,850. $0 (Image)