1951
name: label: Collection Creator
content: Bethlehem Steel Corporation
setName: label: See more items in
content: Bethlehem Steel Corporation Mining Photographs
label: See more items in
content: Bethlehem Steel Corporation Mining Photographs / Series 4: Black-and-White Negatives / 4.5: Chronological
container: label: Container
content: Box 39
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials