#391, Due to modern methods calling for complete mechanization of the different operations in the mine, maintenance of mechanical equipment is a very important factor.  This picture shows one of our machinists turning a driving wheel for one of the twe...
name: label: Collection Creator
content: International Salt Company
label: Collection Creator
content: Costain, Harold Haliday
label: Collection Creator
content: Rittase, William M., 1894-1968
setName: label: See more items in
content: International Salt Company Records
label: See more items in
content: International Salt Company Records / Series 3: Photographs / 3.2: William Ritasse
unitdate: label: Date
content: circa 1934
container: label: Container
content: Box 6, Folder 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
label: Type
content: Photographs