 | 1913 |
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| 1915 |
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| 1917 |
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| 02 Februar |
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| 04 April |
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| 06 Juni |
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 | 09 September |
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| | 1918-09-01-DE-001 | en de | Der Konsul in Trapezunt (Bergfeld) an den Reichskanzler (Hertling) | |
| | 1918-09-07-DE-001 | de | Der Gesandte in Bern (Romberg) an den Reichskanzler (Hertling) | |
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| 11 November |
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| 1919 |
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| 1921 |
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