https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14012718Edit ImageSaveSaveEditCropCustom TextCivil engineering: the Menai box girder bridge. Lithograph by T. Picken.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 870 px | 300 dpiLarge JPEG 3144 x 2280 px | 300 dpiFree DownloadCivil engineering: the Menai box girder bridge. Lithograph by T. Picken.More