Sleep Research Materials, 1929-1970s
name: label: Collection Creator
content: Simmons Company
setName: label: See more items in
content: The Simmons Company Records
label: See more items in
content: The Simmons Company Records / Series 1: Corporate Materials
unitdate: label: Date
content: 1929-1970s
label: Date
content: 1994
label: Date
content: undated
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0731, Subseries 1.10
objectType: label: Type
content: Archival materials