Special Delivery, 1908, 10¢ blue, die essay of woodblock only with solid border, woodblock of entire design with border changed to a solid double line around stamp, on yellowish thin card, fresh and Very Fine. Scott No. E7-E4 var.  Estimate $1,000 - 1,500. THE ONLY RECORDED EXAMPLE OF THIS DIE ESSAY STATE OF THE WOODBLOCK ONLY WITH A SOLID BORDER. $0 (Image)