Box purifier. 1971
Exhauster. 1971
Fan booster switched off
Retort house. 1971
Retort house. 1971
Coke grader. 1971
Shunting empty trucks. 1971
Conveying coke to hoppers. 1971
Filling sacks with coke. 1971
Cleaning a producer fire. 1971
Filling retort with coal from hoppers. 1971
Governor house (later) - machinery starts up. 1971
Governor house (early morning) - general atmosphere. 1971
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