Chatwood Invincible Single bitted safe lock.
Artifact No. 12. D: 19th century. Sn: 106566. CoR: England.

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Lock Sz: 102 x 97 x 27mm. Mt: cast iron, steel, brass. Wt: 1.442kg.
Key (not original) Sz: 81mm. Mt: steel. Wt: 18g.