The Bentonite Tunnelling Machine
| MPAA Rating: | NR |
| Genre: | Documentary, Short |
| Country: | United Kingdom |
| Produced By: | Edgar Anstey |
| Directed By: | John Shearman |
| Cast: | R.K. Neilson-Baxter |
| In Theaters: | N/A |
| Runtime: | 11 minutes |
Followers: 0
| MPAA Rating: | NR |
| Genre: | Documentary, Short |
| Country: | United Kingdom |
| Produced By: | Edgar Anstey |
| Directed By: | John Shearman |
| Cast: | R.K. Neilson-Baxter |
| In Theaters: | N/A |
| Runtime: | 11 minutes |