Thud and Blunder in "Knock-Off Time" (1964)
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Overview : Thud and Blunder learn what not to do while in a coal mine.
Release Date : January 1, 1964
Runtime : 2m
Genre : Animation
Companies : National Coal Board Film Unit, BFI, TVC London
Countries : United Kingdom
Keywords : safety, coal mining, miners, civil disobedience, collier, psa, public information film