N or M?
(Christie)
1
naval intelligence
1
,
2
,
3
Naval Intelligence Division
ID 25
see
Room
1
Room
1
2
Netz
(Zygalski sheets)
1
,
2
,
3
,
4
,
5
g
Newton, Ethel Mary (Mrs K, DK’s stepmother)
1
,
2
Normandy landings
1
north Africa, Operation Torch
1