1918-19 overprinted (type 2gg) on Romanov stamps, 50k brown & slate, used in locally addressed Kiev (18.1.19) cover, with arrival pmk, fine. Only 50 stamps overprinted (Image)
1923 Watermarked 20k+20k violet brown and orange brown, imperf. single, wide margins all around, v.f. and rare, signed Goznak. A rare stamp (Cat No. B6a) (Image)