Details
A miner's dial by Davis & Son,
gimbal mounted with detachable clinometer protractor, silvered dial and vernier, folding cross-sights and ball-and-socket staff-head, in mahogany case with label of John Davis & Son All Saints Works, Derby -- 10½in. (27cm.) wide, late 19th century
gimbal mounted with detachable clinometer protractor, silvered dial and vernier, folding cross-sights and ball-and-socket staff-head, in mahogany case with label of John Davis & Son All Saints Works, Derby -- 10½in. (27cm.) wide, late 19th century