eite 18.
Dave Rimmer: "This lamp is a Davy made by Joseph Cooke of Birmingham. Cooke made lots of la... jpg?direct&220|}}
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**C.E.C.** Manufactured by Commercial Enerineering Co. Commercial Street, B... king profits of £50m a year. The colliery, owned by UK Coal, was one of the three remaining deep coal
p:wp:w_p.jpg?400|}}|Minature Miners lamp produced by W and P of Birmingham (Burt Brothers, Edward Stre... rham, England, on 16 February 1909. It was caused by too much methane gas in the air which caused a si
E CHARACTERISTICS AND USE OF LEAD-ACID CAP LAMPS. by M.F. Cowiishaw]]|
|:::|:::|[[https://karl-heupel.... e 3 watts. The light from this source is focussed by a unique reflector that gives a spot of 5000 lux