An inscription on the front of the base reads: "Homage to Leonardo". The back of the base includes the inscription: "Homage to Leonardo / From the original conception by the Italian sculptor Enzo Plazzotta (1921 - 1981). Completed by his assistant Mark Holloway in 1982 and sponsored by Mr & Mrs John Harbert III. Birmingham, Alabama." A third inscription on a nearby plaque reads: "Homage to Leonardo ‘The Vitruvian Man’ / Enzo Plazzotta (1921 – 1981). / Completed posthumously by Mark Holloway in 1982. Sited in 1984. Kindly sponsored by Mr and Mrs John Harbert III."