| Ddisgrifiad / Description | Residential Course for Senior Water Engineers at Glan-y-Mor, Barry.
Information on Course - Restricted.
Fire Service Wartime Chain of Command (Provisional) Restricted.
Civil Defence Handbook No.10, Advising the Householder on Protection against Nuclear Attack.
Newspaper article: The 100-Megaton Bomb from The Guardian Science Sep 19, 1961. |