The invisible weapons,
Silber, Jules Crawford. [from old catalog]
The invisible weapons, by J. C. Silber; with a foreword by Major-General Edward Gleichen. - London, Hutchinson & co., limited, 1932. - 288 p. illus. (facsims.) 22 cm.
The story of a German secret service agent who was employed by the British Postal censorship during the war.
World War, 1914-1918--Secret service--Germany.
World War, 1914-1918--Censorship--Great Britain.
World War, 1914-1918--Propaganda.
940.2 / SIL
The invisible weapons, by J. C. Silber; with a foreword by Major-General Edward Gleichen. - London, Hutchinson & co., limited, 1932. - 288 p. illus. (facsims.) 22 cm.
The story of a German secret service agent who was employed by the British Postal censorship during the war.
World War, 1914-1918--Secret service--Germany.
World War, 1914-1918--Censorship--Great Britain.
World War, 1914-1918--Propaganda.
940.2 / SIL