75/4640 Vereschagin, G.G. (b.1955). "Ex libris H.P. Bongers". Col. etching and aquatint, 12,8x10,7 cm., signed, "92", "39/100" and "C3+5" in pencil, titled in the plate. Idem. "Ex libris H.P. Bongers". Col. etching and aquatint, 12,8x11 cm., signed, "93", "42/50" and "C3+5" in pencil, titled in the plate.