A finely carved Roman rock crystal intaglio depicting a Roman Galley. The ship is under a large sail with numerous oars. The stone is clear with the back remaining unadorned. The intaglio is supplied with a museum-quality baked impression. The term intaglio refers to a small image that has been engraved into a gemstone and usually set in a piece of jewellery, most commonly a ring. Such artistic form has its origin in Sumer in the 4th millennium BC, with the appearance of cylinder and stamp seals, whereby decorations and patterns were engraved into soft stones. During the Hellenistic period and the early Roman Empire, the art of intaglio reached its apogee, with there being a steady decline in craftsmanship in the late Imperial Rome, until a revival of interest with the Byzantine and during the Renaissance. Measurements: Length - 1.9cm Width - 1.1cm Provenance: From the collection of a Swiss gentleman formed in Europe from 1970-1980s; thence by descent from the family in London.