Cassiano's Antichita Diverse album survives almost intact in the Royal Library at Windsor Castle. It is a compendium of pen-and-wash drawings of Roman antiquities, including jewellery, amulets, weights and measures, vases and lamps, tripods, statuettes and reliefs. Many of the drawings record the collection in which the objects were then to be found, for they were the subject of much antiquarian study and debate in the early seventeenth century.