https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14014106Edit ImageSaveSaveEditCropCustom TextA mine: cross-section of a machine for extracting water from the pit and three optical diagrams. Etching by T. Jefferys.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 681 x 1200 px | 300 dpiLarge JPEG 1987 x 3500 px | 300 dpiBest Quality JPEG 2126 x 3745 px | 300 dpiFree DownloadA mine: cross-section of a machine for extracting water from the pit and three optical diagrams. Etching by T. Jefferys.More