Comparison oif numbers 4 and 5 buck and flotation produced
name: label: Collection Author
content: Lehigh Coal and Navigation Company
setName: label: See more items in
content: Lehigh Coal and Navigation Company Records
label: See more items in
content: Lehigh Coal and Navigation Company Records / Series 20: Miscellaneous Materials
unitdate: label: Date
content: 1947 - 1954
container: label: Container
content: Box 75, Folder 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials