Lot
1447 
Special Delivery, 1908, 10¢ green, set of four plate number blocks of six representing the four plate numbers used to print this new special delivery issue: 4916 (right), 4917 (bottom), 4920 (bottom) and 4921 (left), o.g., 4917 with some hinge remnants and 4921 with tiny thin spot, a F.-V.F. set. Scott No. E7 $4,300.
Realized: $800