| Reference number | DM/3/9 |
| Level | Item |
| Title | 'On the Copper Sheathing of Ships' |
| Date | 1 May 1823 |
| Description | Report from the Naval Ofice.
Originally enclosed with DM/3/9. |
| Extent | 11 sides |
| Format | Manuscript |
| Access status | Open |
| Access conditions | OPEN - but photocopying forbidden. |
| Related material | See CMB/1/9 |