Concentration and refining of (?)
name: label: Collection Author
content: Parke, Davis Company
setName: label: See more items in
content: Parke, Davis Research Laboratory Records.
label: See more items in
content: Parke, Davis Research Laboratory Records. / Series 5: Photographs / Factory (interior views), Departments, Laboratories, and Manufacturing
unitdate: label: Date
content: undated
container: label: Container
content: Box 429, Folder 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials