Thud and Blunder in "Knock-Off Time" (1964)
Thud and Blunder in "Knock-Off Time" (1964) - Animation Movies 2 minutes. Thud and Blunder in Knock off Time. Thud and Blunder learn what not to do while in a coal mine. safety, coal mining, miners, civil disobedience, collier, psa, public information film
