Watch List notes:

CHARLES III (1759-1788). Delights of the Arts. (Ae. 158.33g / 64mm). 1764. Uniform proof of the reverse gap. Two female figures symbolizing painting and architecture. In exergue: PS (Pedro Sepúlveda?) 1764. XF. The unmarked side has numerous markings. Very interesting. This work is most likely an exercise in his engraving based on a piece by Massimiliano Soldani-Benzi (1658-1740) made for the architect Cyro Ferri in 1680.