Roman Bronze Key
An ancient Roman bronze key with a suspension ring, that has a little nib on top, on a long handle perpendicular to the bit, which is flat and not notched.
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.