https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13961045Edit ImageSaveSaveEditCropCustom TextEngineering: six steam engines. Engraving c.1861.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 796 px | 300 dpiLarge JPEG 3287 x 2180 px | 300 dpiFree DownloadEngineering: six steam engines. Engraving c.1861.More