Hellen
a distinguished engraver of gems in the time of Hadrian. (Bracci, vol. ii. tab. 77; de Jonge, p. 161; Köhler, Einleitung, p. 23; R. Rochette, Lettre à M. Schorn, p. 44.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.