Harpsichordist Raffaele Vrenna's instrument. The lid painted in oils, portraying Naples coast line and Partenope surrounded by other mythological characters. All the characters are a free inspiration from the Luca Giordano's painting (Galatea's Triumph - 1675). The case is painted in oils on gold leaf, with a decoration used in XVII century, revised with sirens, tritons and shells, all in agreement with the painting on the cover lid.
In the picture under, the sketch.