https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14013305Edit ImageSaveSaveEditCropCustom TextHydraulics: various designs for pumps. Engraving by A. Bell.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1043 x 1200 px | 300 dpiLarge JPEG 2450 x 2819 px | 300 dpiFree DownloadHydraulics: various designs for pumps. Engraving by A. Bell.More