Thud and Blunder in "Knock-Off Time"
Thud and Blunder learn what not to do while in a coal mine.
- विधा: Animation
- स्टुडियो: National Coal Board Film Unit, BFI, TVC London
- कीवर्ड: safety, coal mining, miners, civil disobedience, collier, psa, public information film
- जात:
