An exhibition-standard 19th-Century nickel-plated tooth key,

细节
An exhibition-standard 19th-Century nickel-plated tooth key,
signed CHARRIERE CLEF RETOURET [?]BIE S.G.D.G. 5, with turned ivory handle, facetted cranked-shaft, with blued-steel mechanism to move the claw, and claw --6in. (15.2cm.) long; together with two blued-steel claws

See Front Cover (3)