unused Block of Four 1c-10c Kans.-Nebr. overprints (658-679), plate no. blocks of four, fresh, h.r., most have one or more stamps never hinged, 1½c Kans. creased, 3c Kans. somewhat diagonal selvage, one 10c Kans. stamp has small crease and 10c Nebr. has partial separation which is hinge reinforced, otherwise very good-very fine set, Scott retail $6,227.50 photo ex