This clock by Clay, signed and dated 130, is the oldest "musical clock" with mechanical organ known to exist. There is non record of how it came to the Neapolitan court. The clock comprises a case in the form of an aedicule with a glass door on the back representing the entrance to a temple. At the bottom in silver lamina the figure of Time is seen on the threshold of the temple, falling asleep to the sound of Music, a conventional Renaissance allegorical conceit. Above the clockface an oli painting on copper shows five celestial musicians playng on their instruments, their arms moved by the clockwork mechanism.
