lustrated on p18 of the Cooke book. They all seem to have survived in good condition so, rather than f... sale, I suspect that Hardy gave them as a present to their customers" (Many Thanks!).
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====Old Da... c.jpg?direct&200|}}
1918 Joseph Cooke & Son sold to Commercial Engineering Company Ltd. Midland Davy ... alfields in Europe. In 1925 two shafts were sunk to a depth of 690m below ground at Thoresby Colliery
mp:uk_mining_lamp:wp:wpb5.jpg?200|}}|Brass plaque to the front which reads "Patent No 23573/09 W & P.B... methane gas in the air which caused a single lamp to explode (this was never proven at the time and th...
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