Floor gratings
name: label: Collection Creator
content: Mandragos, Nicholas C., 1896- (engineer)
label: Collection Creator
content: Mandragos, Frieda
setName: label: See more items in
content: Nicholas C. Mandragos Papers
unitdate: label: Date
content: 1957, 1964
container: label: Container
content: Box 9, Folder 6
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials