(Plating) 3¢ Dull Red, Plate 1L Centerline Reconstruction, 20 sheet margin singles showing the centerline of plate 1L from the left and right panes includes the corner sheet margins, some very pretty stamps to be found with some color cancels present, some flaws to be expected, Very Fine and rare, ex Amonette. Scott No. 11A  Estimate $1,500 - 2,000. This is a unique study showing all positions of the centerline between the left and right panes of 100. $0 (Image)