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Mining dial

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Probably made in Glasgow

Mining dial
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This brass mining dial was made around 1850, probably by Gardner & Co., scientific instrument makers based in Glasgow. Despite its name the mining dial was used in a wide range of local and estate surveying.

The mining dial has two opposing slit and window sights. The dial shows the four cardinal points and has a scale divided into 360 degrees. Engraved on the dial plate is 'GARDNER & CO. OPTICIANS &c./ 21 BUCHANAN ST. GLASGOW'. The needle is made of steel.

The Gardner's family firm was established in 1799 by John Gardner, who had been James Watt's principal journeyman before setting up on his own. The firm became prolific makers of scientific instruments during the 19th century.

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