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6" brass mining dial signed E.T. Newton

1801-1900

Mining dial by J. Casartelli of Manchester

1871-1900

Mining compass in engraved ivory case, Italian, 17th century

1601-1700

Mining dial, English, 1828-1873

1828-1873

Mining compass & clinometer, German, 1901-1907

1901-1907

Mining compass, Italian , 1769

1769

Hedley type mining dial by B. J. Hall and Co., c. 1920

Hedley type mining dial by B. J. Hall and Co.

1920

Miner's surveying compass (mining dial) by Henry Barrow & Co.., 2 Oxenden St., London, England, 1845-1855

Miner's surveying compass, 1845-1855

1845-1855

Mine surveyor's kit, contains hanging compass, hanging clinometer, protractor, ruler, in fitted leather case, 1701-1800

Mine surveyor's kit, 1701-1800

1701-1800

Lean's mining dial by W. & S. Jones, Holborn, London, 1801-1825

Lean type mining dial, 1801-1825

1801-1825