https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13966867Edit ImageSaveSaveEditCropCustom TextThe salt mines at Dürrenberg: men with lamps are sliding down into the mine. Etching.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 872 px | 300 dpiLarge JPEG 3200 x 2326 px | 300 dpiFree DownloadThe salt mines at Dürrenberg: men with lamps are sliding down into the mine. Etching.More