A surveyors compass by Gabriel Davis of Leeds, circa 1830.

5 inch silvered dial with cardinal points signed: G. Davis LEEDS.

Steel bar needle mounted on a jewel centre pivot, screw action brass transit lock.

Outer bearing circle marked 10° – 360°

Inner circle marked with carinal points and with quadrants of 0° – 90°

Mahogany case with folding brass sights.

Mounted on a wood display base.

Width: 16.5 cm.

Depth: 14.5 cm.

Height: 16.5 cm.

Gabriel Davis, worked 1822 – 1847, at Boar Lane, Leeds.

See: Directory of British scientific instrument makers, 1550-1851, Gloria Clifton, 1995. Page: 78.