Roman Bronze Key
An ancient Roman bronze key with a suspension ring on a short handle that is perpendicular to the bit, which has two deep, thick and rectangular teeth.
Ca. 2nd - 4th century AD.
Confer keys and lock mechanisms: Rieche & Schalles, Arbeit. Handwerk und Berfude in der romischen Stadt, (Cologne, 1994), pp. 46-47.
Formerly in a German private collection.