https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13973275Edit ImageSaveSaveEditCropCustom TextA man in a mine, using safety apparatus invented by Auguste Denayrouze, finds asphyxiated miners. Wood engraving by J. Nash, 1874.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 901 px | 300 dpiLarge JPEG 3070 x 2304 px | 300 dpiFree DownloadA man in a mine, using safety apparatus invented by Auguste Denayrouze, finds asphyxiated miners. Wood engraving by J. Nash, 1874.More