Hunting Permit, 1940, $1 Black Mallards. Top right plate block of 6, o.g., very lightly hinged (bottom left stamp & bottom right selvage, otherwise n.h.), beautiful centering, bold color, quite fresh, Extremely Fine, a stunning plate which is very rare in this outstanding condition; with 2006 P.F. certificate. Scott No. RW7  $2,500 for n.h. $0 (Image)