The original instrument has a body with 31 strips of yew, separated with clear wood lines. The extended neck is not original, and is of much inferior quality, veneered in snakewood. This seems to confirm the use of bass lutes as the material for the first chitarrones in history. The date precedes the explosion of the Italian Opera, with Monteverdi's Orfeo, in 1609, making it a very probable component of the Italian continuo for that time.
X-rays showed nails driven on both ends of the neck, compass marks used to locate the bridge and the bars and gluing spots.