Keywords: library of virginia libraryofvirginia hopewell va hopewellva united mine workers of america unitedmineworkersofamerica chemical industry industrial factory chart blackandwhite monochrome black and white Title: Preventive maintenance Date: 1957 Feb. Identifier: Hopewell UMWA Collection 1019E Format: 1 negative, safety film Rights Info: No known restrictions on publication. Repository: Library of Virginia, Prints and Photographs, 800 E. Broad St., Richmond, VA, 23219, USA, digitool1.lva.lib.va.us:8881/R Title: Preventive maintenance Date: 1957 Feb. Identifier: Hopewell UMWA Collection 1019E Format: 1 negative, safety film Rights Info: No known restrictions on publication. Repository: Library of Virginia, Prints and Photographs, 800 E. Broad St., Richmond, VA, 23219, USA, digitool1.lva.lib.va.us:8881/R |