Patriotic leaflet from the series "Iron Leaves", No. 10: "Tsingtau "* Tsingtau Ajouter au presse-papier Do 57/169.49 Dossier zwischen 1914 und 1918 Fait partie de German Historical Museum Foundation In: German Historical Museum Foundation C.L. Krüger GmbH
* Iron Leaves No. 10 - Tsingtau* Tsingtau Ajouter au presse-papier Do 55/382.20 Dossier nach 07.11.1914 Fait partie de German Historical Museum Foundation In: German Historical Museum Foundation C.L. Krüger GmbH
