https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13972219Edit ImageSaveSaveEditCropCustom TextCivil engineering: the Conway box girder bridge, viewed from entrance level. Coloured lithograph by G. Hawkins after himself.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 838 x 1200 px | 300 dpiLarge JPEG 2207 x 3161 px | 300 dpiFree DownloadCivil engineering: the Conway box girder bridge, viewed from entrance level. Coloured lithograph by G. Hawkins after himself.More