File. 'Secret Envelope Y'. Instructions to officers in cases of national emergency (ex-Admiralty)

Reference No:
U DEW2/9/19
Dates:
1960- 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