Correspondence re. Mr Liwentaal's cryptographic instruments. 1906-7.
Correspondence re. Mr Liwentaal's cryptographic instruments. 1906-7.
Record details
| Item reference: | MER/60; MS1967-12 |
|---|---|
| Catalogue section: | Artificial collections previously assembled |
| Level: | ITEM |
| Extent: | 1 volume |
| Date made: | 1906 - 1907 |
| Creator: | HMS Mercury |
| Credit: | National Maritime Museum, Greenwich, London |
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- War Tactical Exercises. 1905. A pamphlet classified Secret, which contains brief instructions on the use of Cruiser Code cipher numbers. (Manuscript) (MER/56)
- Front cover only of folder entitled Flags. 1905 - 1914. (Manuscript) (MER/57)
- Correspondence re. Royland Tubb's proposal of coloured lights for signalling. 1906. (Manuscript) (MER/58)
- Correspondence re. J. Wall's Bridge Signal Monitor Plates. 1906. (Manuscript) (MER/59)
- Correspondence re. Mr Liwentaal's cryptographic instruments. 1906-7. (Manuscript) (MER/60)
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