With Bulgaria joining the Central Powers in October 1915 assuring the defeat of Serbia by the end of November, the Balkanzug — the Balkan Railway, shown in red — connected Berlin and Constantinople. By the second week of November, Turkey received ammunition and weapons from its allies.
Vierbund-Treubund
Quadruple Alliance-True Alliance
Reverse:
Message dated February 28, 1916, and postmarked the next day.
Logo: Erika
Nr. 5448
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