Volume 4, Record Book for Drawings of Purifiers, Center Seals, Bye Passes, Tar Extractors and Washer Scrubbers
name: label: Collection Creator
content: Koppers Company.
label: Collection Creator
content: Bartlett-Hayward Company.
setName: label: See more items in
content: Bartlett Hayward Company Records
unitdate: label: Date
content: 1883-1904
container: label: Container
content: Box 7
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials