The previous page is sending you to https://commons.wikimedia.org/wiki/File:1918-04-01_Feldpostkarte_1370_Vorsicht_am_Fernsprecher,_Feind_h%C3%B6rt_mit,_27._Generalkommando,_Bildseite.jpg.

 If you do not want to visit that page, you can return to the previous page.