Lot 1142Special Delivery, 1917, 10¢ Ultramarine - Plate Numbers & Initials, mint selvage single exhibit group on four pages comprising 37 different top or bottom plate number singles including "10276" and "13393" each with inverted "F", the signature of plate finisher Frank Marti, one showing aniline ink caused by WWI ink shortages, siderographer initial corner margin singles of "W.McA" William McAleer, "C.A.H." Charles A. Hall, "A.B." Andrew Black, "C.F.H." George F. Henlock and "G.L.D." George L. Dant, plus a couple used singles, F.-V.F., a wonderful plate number single assemblage that would be impossible to duplicate.
Scott No. E11 Estimate $500 - 750.