Deep Dig
Pit sinkers prepare the coal mines of tomorrow. An account of shaft sinking techniques.
| Release Date | January 1, 1957 | |
|---|---|---|
| Status | Released | |
| Original Title | Deep Dig | |
| Runtime | 20min | |
| Budget | — | |
| Revenue | — | |
| Language | English | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | National Coal Board Film Unit | |