Thermal efficiencies
name: label: Collection Creator
content: McIntosh, Seymour and Company
setName: label: See more items in
content: McIntosh, Seymour and Company Records
label: See more items in
content: McIntosh, Seymour and Company Records / Series 8: Technical Data
unitdate: label: Date
content: 1904
container: label: Container
content: Box 62, Folder 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials