Coefficients of Transmission of Walls Ceilings and Floors
name: label: Collection Engineer
content: Allen, E. Lewis
setName: label: See more items in
content: E. Lewis Allen Papers
unitdate: label: Date
content: 1931
container: label: Container
content: Box 3, Folder 3
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials