File. 'British Mersex'. Code machines ex-British Admiralty
- Reference No:
- U DEW2/9/18
- Dates:
- 1958-1962
- Description:
- Format:
- Archive Item
- Extent:
- 1 file
- Language:
- Access Conditions:
- Access will be granted to any accredited reader
- Repository:
- Hull University Archives
- Collection:
- Archives of Ellerman's Wilson Line