Thallus, P. Corne'lius
son of an architect of the same name, is designated MAG. QUINQ. i. e. Magister Quinquennalis,
on a Latin inscription. Hence the father, and perhaps the son too, must be added to the lists of ancient artists. (Gruter, p. 99.9; Bracci, Memor. de Incisor.
vol. ii. p. 265; R. Rochette, Lettre à M. Schorn.
p. 415, 2d ed.)