Tile cutter, Hightstown, New Jersey, showing modern health methods used in this work. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266906/photo-image-face-person-headphonesFree Image from public domain licenseChicago, Illinois. Operator of a refacing machine at the wheel shop in the Chicago and Northwestern Railroad repair shops.… https://www.rawpixel.com/image/12288840/photo-image-face-person-headphonesFree Image from public domain licensePittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Noon in the "bean hole". Sourced… https://www.rawpixel.com/image/12290255/photo-image-face-person-headphonesFree Image from public domain license[Untitled photo, possibly related to: In the airport control room with which incoming and outgoing airliners are in constant… https://www.rawpixel.com/image/12279442/photo-image-face-people-shirtFree Image from public domain license[Untitled photo, possibly related to: Washington, D.C. The Egyptian Legation on Massachusetts Avenue. Legation officials].… https://www.rawpixel.com/image/12290929/photo-image-face-person-artFree Image from public domain licenseGreenville, South Carolina. Air Service Command. Enlisted men of the signal company of the 25th service group operating a… https://www.rawpixel.com/image/12294861/photo-image-face-plant-personFree Image from public domain license