| RefNo | DM/3/10 |
| Level | Item |
| Title | Letter from JB Martin, Navy Office |
| Date | 16 June 1830 |
| Description | On a report into copper sheathing on ships. |
| Extent | 2 sides |
| Format | Manuscript |
| AccessStatus | Open |
| AccessConditions | OPEN - but photocopying forbidden. |
| RelatedMaterial | See CMB/1/9 |