Hobbs Parautoptic Key with detachable bit.
Artifact No. 6 - Hobbs Parautoptic key with individual adjustable bits and detachable bit head. D: 19th century, c1860's. CoR: England.
Attachment 16604 Attachment 16606
Attachment 16605
Sz: 135mm. Mt: steel. Wt: 96g.