https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14014705Edit ImageSaveSaveEditCropCustom TextTransvaal, South Africa: a gold mining valley occupied by Union Company and Pioneer United Company, with Barberton in the distance. Woodburytype, 1888, after a photograph by Robert Harris.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 772 px | 300 dpiLarge JPEG 3306 x 2128 px | 300 dpiFree DownloadTransvaal, South Africa: a gold mining valley occupied by Union Company and Pioneer United Company, with Barberton in the distance. Woodburytype, 1888, after a photograph by Robert Harris.More