Month Cancels on 1869 3¢ Ultramarine, group of six mounted on Skinner album page comprising "Jul" (ND-M1, ND-M2a), "Aug" (ND-M6, M8), "Sep" (ND-M9) and "Oct" (ND-M11), some faults, Fine, A rare group that would be difficult to duplicate, ex-Skinner. Scott No. 114. Skinner-Eno No. ND-M  Estimate $600 - 800. $0 (Image)