https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8765625Edit ImageSaveSaveEditCropCustom TextTwo Miners Are Cleaning Out Loose Coal by Hand So Canvas Walls Can Be Hung to Control the Air Flow in the Virginia-Pocahontas Coal Company Mine #3 near Richlands, Virginia 04/1974. Photographer: Corn, Jack. Original public domain image from FlickrMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 1200 x 812 px | 300 dpiLarge JPEG 3000 x 2030 px | 300 dpiFree DownloadTwo Miners Are Cleaning Out Loose Coal by Hand So Canvas Walls Can Be Hung to Control the Air Flow in the Virginia-Pocahontas Coal Company Mine #3 near Richlands, Virginia 04/1974. Photographer: Corn, Jack. Original public domain image from FlickrMore