(a) inscribed in fibre-tipped pen on paper label adhered to reverse l.l.: Dennis Del Favero (D. Del Favero) / “La sessualità del maschile” / Panel 1. 3/5. 1993 (b) inscribed in fibre-tipped pen on paper label adhered to reverse l.l.: Dennis Del Favero (D. Del Favero) / “La sessualità del maschile” / Panel 2. 3/5. 1993 (c) inscribed in fibre-tipped pen on paper label adhered to reverse l.l.: Dennis Del Favero (D. Del Favero) / “La sessualità del maschile” / Panel 3. 3/5. 1993