Graphics lot: Giancarlo Tognoni, Enzo Vicentini and Sergio Vacchi

Giancarlo Tognoni (1932-2020) Fiori e insetti 1968, engraving, numbered 3/30, signed; Enzo Vicentini Firenze 1982, lithograph, numbered 37/99, signed; Sergio Vacchi (1925-2016), Per un Ingres Immaginario 1968, lithograph, numbered 16/80, signed

cm 46.5x64.5, 71x50 cm, 50x74 cm (3)

With certificate of authenticity of Il Bisonte Firenze