South Durham miners or pit-men at work at the coal face. On the floor, centre left, is a Clanny safety lamp which had a thick glass round the flame, while on the right the miner is holding up a Davy lamp which had wire gauze round the flame. On the right the boy with a pit pony is waiting for the miners to fill the wagon with coal so that he can hitch up the pony which will drag the wagon along the rails to the bottom of the pit shaft. Engraving from 'The Graphic' (London, 28 January 1871).