Electro-magnetic Marking of Steel Rope
| MPAA Rating: | NR |
| Genre: | Documentary, Short |
| Country: | United Kingdom |
| Produced By: | Francis Gysin |
| Directed By: | Norman Prouting |
| Cast: | Geoffrey Toone |
| In Theaters: | N/A |
| Runtime: | 10 minutes |
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| MPAA Rating: | NR |
| Genre: | Documentary, Short |
| Country: | United Kingdom |
| Produced By: | Francis Gysin |
| Directed By: | Norman Prouting |
| Cast: | Geoffrey Toone |
| In Theaters: | N/A |
| Runtime: | 10 minutes |