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Mining dial by J. Casartelli of Manchester

1871-1900

6" brass mining dial signed E.T. Newton

1801-1900

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

1601-1700

Mining compass & clinometer, German, 1901-1907

1901-1907

Mining dial, English, 1828-1873

1828-1873

Mining compass, Italian , 1769

1769

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

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

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

1920

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

Lean type mining dial, 1801-1825

1801-1825