https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987508Edit ImageSaveSaveEditCropCustom TextWorld War I: the German army in retreat from the Pas-de-Calais . Colour lithograph by A.L. Bognard.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 927 px | 300 dpiLarge JPEG 3012 x 2328 px | 300 dpiFree DownloadWorld War I: the German army in retreat from the Pas-de-Calais . Colour lithograph by A.L. Bognard.More