Thud and Blunder in "Knock-Off Time"
- Shekara: 1964
- Kasa: United Kingdom
- Salo: Animation
- Studio: National Coal Board Film Unit, BFI, TVC London
- Mahimmin bayani: safety, coal mining, miners, civil disobedience, collier, psa, public information film
- Darakta:
- 'Yan wasa:
