Keywords: Drill press operator, Allegheny Ludlum Steele Corp, Brackenridge, Pa.jpg en Drill press operator Allegheny Ludlum Steel Corp Brackenridge Pa LOC-image fsac 1a35059 Creator Alfred T Palmer 1941 PD-USGov Photographs by Alfred T Palmer Drill presses Steelworkers 1941 in Pennsylvania Allegheny Ludlum Bib overalls |