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Secret Writing Sample
- Notes:
- This is a photograph of the original letter, written in French; when exposed to certain chemicals, a secret message appeared. The Germans discovered the letter and were able to expose the secret message.
- Date Created:
- 1918-01-01T00:00:00Z
- Data Provider:
- Western Michigan University. Libraries
- Subject Topic:
- Germany, Correspondence, Crime, Code, French POWs, World War 1914-1918, Diplomatic History, European History, Military History, and Political History
- Rights:
- No Copyright - United States. Physical ownership of materials: Wilhelm Doegen. Kriegsgefangene Völker, Band I: Der Kriegsgefangenen Haltung und Schicksal in Deutschland. Berlin: Verlag für Politik und Wirtschaft, 1921, Photo 24, 76B.
- URL:
- https://scholarworks.wmich.edu/wwi_pow_camps/333