https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14018310Edit ImageSaveSaveEditCropCustom TextCivil engineering: a cast iron bridge, proposed for the Menai Straits. Lithograph, 1849, after E. Clark.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 759 px | 300 dpiLarge JPEG 3365 x 2128 px | 300 dpiFree DownloadCivil engineering: a cast iron bridge, proposed for the Menai Straits. Lithograph, 1849, after E. Clark.More