| Reference number | MS/525/6/6/2/25 |
| Level | Item |
| Title | 'Tidal mines': drawing by Joseph Ernest Petavel, C H Lander and Andrew Robertson |
| Date | 11 March 1915 |
| Description | Sketches showing the drifting action of four options of creeping mine. The University, Manchester |
| Extent | 1 drawing |
| Format | Blueprint |
| Dimensions | 36x28cm |
| Access status | Open |
Fellows associated with this archive
| Code | Name | Dates |
| NA8267 | Petavel; Sir; Joseph Ernest (1873 - 1936) | 1873 - 1936 |
| NA591 | Robertson; Andrew (1883 - 1977); mechanical engineer | 1883 - 1977 |