https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14021203Edit ImageSaveSaveEditCropCustom TextCivil engineering: a railway bridge at Cologne. Lithograph by J. R. Jobbins after E. H. Horne.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 800 px | 300 dpiLarge JPEG 3307 x 2204 px | 300 dpiFree DownloadCivil engineering: a railway bridge at Cologne. Lithograph by J. R. Jobbins after E. H. Horne.More