Copper-alloy, 8.72 grams, 26.30 mm. 1st-4th century AD. A substantial key for a tumbler lock, with a short shank and thin finger loop. The bit is formed from a thick flat plate with teeth on the leading edge to fit the tumblers in the lock. Reference: Read, B. Metal Artefacts of Antiquity, Langport, 2001, p.61. Very fine condition. Provenance: from an old English collection.