| RefNo | MS/525/7/2/14 | 
| Level | Item | 
| Title | 'Mine for attacking enemy ships in harbour': report [by John Joly] | 
| Date | [11 February 1915] | 
| Description | Description of a mine to be dropped by aircraft into enemy harbours where it will 'wander' at varying depths until striking a larger ship. | 
| Extent | 4p | 
| Format | Mimeograph | 
| AccessStatus | Open | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA824 | Joly; John (1857 - 1933); geologist and physicist | 1857 - 1933 |