CH 1998 FDC 150 Years Swiss Conf. Comb. Bloc of 4 ill.no addr.

CH 1998 FDC 150 Years Swiss Confoederation Joined bloc of 4 Combinations (SBK 993I-936I, Michel n.V.) incl. Core Piece (SBK 936I)on 4 off. ill. FDC without address (Format C6) and off. first day cancellations 07.01.1998, 3 of them no sale in this form by postal administration!