https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13987400Edit ImageSaveSaveEditCropCustom TextThe washing of ore. Etching by Bénard after Prevost.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 759 x 1200 px | 300 dpiLarge JPEG 1252 x 1980 px | 300 dpiFree DownloadThe washing of ore. Etching by Bénard after Prevost.More