German and Austro-Hungarian forces under the command of generals von Hindenburg and Archduke Friedrich besieged Warsaw, and took it during the Gorlice-Tarnow Offensive. Austrians von Hötzendorf, Friedrich, and Pflanzer-Baltin form the bottom of the ring; the others are German. The flag and shield of Germany are on the bottom left; those of Austria and Hungary the bottom right.
Der Ring um Warschau, The Ring Encircling Warsaw.Bottom right: 5258; illegible logo bottom leftReverse: registration lines only.
"Warsaw is in danger from a violent counter-attack by the Germans north of the Pilica. The Russian resistance is magnificent."
Entry from the memoirs of Maurice Paléologue, French Ambassador to Russia, for Tuesday, October 13, 1914. The German advance reached within a dozen miles of Warsaw by mid-October, 1914.
An Ambassador's Memoirs Vol. I by Maurice Paléologue, page 167, publisher: George H. Doran Company, publication date: 1925
Maurice Paléologue, Paléologue, October, 1914, 1914-10-13, Warsaw