75/4121 Rossem, R.H. van (1924-2007). Lot of 3 col. relief etchings and aquatint,     each 17x21 cm, all signed "Ru van Rossem '55", titled and "l'epreuve d'artiste" in pencil, from Spirituals and blues suite (London, St. George's Gallery Prints). - AND 2 col. brush etchings and aquatints by H.A. GERRITZ: "Rivier" and "Rode Toren".