Photograph of engine driving ammonia compressor
name: label: Collection Creator
content: Cox & Sons Company
setName: label: See more items in
content: Cox & Sons Company Records
unitdate: label: Date
content: undated
container: label: Container
content: Box 1, Folder 9
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials