This quadrant can be attributed to Camillo della Volpaia, both from the construction characteristics and from the initials engraved on the front, "CVFF," which stand for "Camillus Vulpaia Florentinus Fecit." The horary quadrant is set for latitude 43°30' (Florence). On the front are a degree scale, Italian hour lines, a disk showing the Sun's annual travel through the zodiac signs ("Tabula Solis motus"), and the Medici coat of arms. The back is engraved with a shadow square.