1919 1kr, 5kr and 10kr ultramarine, each overprinted in red, canceled Krakow 2.II.19 and tied on small pieces, v.f., signed Herbert Bloch, Mikstein, plus other pencil and handstamped signatures. A splendid set of high value Postage Dues from Poland, certainly among world-class rarities: of 10kr, only 40 were printed (80 printed of 1kr and 5kr). Only a few used sets can exist (Fischer D10-12I, zl 116,000 $29,980) cat. $29500 (Cat No. J8-10) (Image)