https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13970319Edit ImageSaveSaveEditCropCustom TextHydraulics: pipes, pumps, fountains, etc. Engraving c.1861.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 811 x 1200 px | 300 dpiLarge JPEG 1723 x 2549 px | 300 dpiFree DownloadHydraulics: pipes, pumps, fountains, etc. Engraving c.1861.More