Copy documents relating to British army and navy telegraph codes, including messages and instructions for encoding and decoding,
1920 Aug. 21-1922 April 1.
| Main Creator: | |
|---|---|
| In collection: | Florence O'Donoghue Papers. |
| Format: | Manuscript |
| Language: | English |
| Subjects: | |
| Notes: | Physical description: 1 folder (11 items). |
| Access: | Some items torn and delicate - handle with care. |
| Arrangement: | Sub-fonds |
