1865 1S GREEN PLATE 4 WMK EMBLEMS (SG101) USED BLOCK OF TWELVE. A good used block of twelve 1865 1s green plate 4 watermark emblems (SG101) lettered CI to EL, several short perforations, slight creasing and some perforations reinforced but A VERY RARE BLOCK WHICH MUST BE ONE OF THE LARGEST KNOWN OF THIS ISSUE. Cancelled Glasgow ROLLER and part duplex. Cat. £3400 as two blocks of four and singles. (Ref 86545).