1973 replica of clavicytherium (c.1480s), Royal College of Music Museum of Music

In the museum of the Royal College of Music in London, this is a working replica of the c. 1480s clavicytherium (upright harpsichord) elsewhere in the museum, thought to be the world's oldest surviving stringed keyboard instrument.

Built in 1973, this replica is considerably less decorated than the original, but gives a good idea of how the scholars believe the original would have looked, worked and sounded. It's hard to see from the photo, but the strings pass up the front of the instrument, over the three window-like soundhole rosettes. Basically, the instrument shows its origins as like a keyed psaltery, more than later harpsichords probably do.