https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12241232Edit ImageSaveSaveEditCropCustom TextSafety inspector. This man uses a special lamp to test for gas throughout the mine. Old Ben number eight, West Frankfort, Illinois (see 26980-D). Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1200 x 924 px | 300 dpiLarge JPEG 3500 x 2694 px | 300 dpiBest Quality JPEG 13640 x 10498 px | 300 dpiTIFF 13640 x 10498 px | 300 dpi | 136.65 MBFree DownloadSafety inspector. This man uses a special lamp to test for gas throughout the mine. Old Ben number eight, West Frankfort, Illinois (see 26980-D). Sourced from the Library of Congress.More