Cameos were devised some time in the Hellenistic period, and they were used in a decorative manner. ln terms of style and subject matter they follow developments in the making of intaglios and other glyptic products as well as coinage. This paper examines two related series of carnos which seem to have been produced in Alexandria of the later Hellenistic period, and under direct Ptolemaic patronage. Their study is held in view of a reappraisal of the Taua Farnese, and the presentation here of a further argument in support of this Grand Cameo's dating in the first century BC.