Mason-Neilan Regulator Company History
name: label: Collection Creator
content: Holly Manufacturing Company
label: Collection Creator
content: Worthington Corporation
setName: label: See more items in
content: Worthington Corporation Records
label: See more items in
content: Worthington Corporation Records / Series 3: Publications / 3.5: External Publications
unitdate: label: Date
content: circa 1956
container: label: Container
content: Box 28, Folder 7
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials