Number 10 (general valve gear)
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 5: Calculation Books and Sheets
unitdate: label: Date
content: 1906 - 1907
container: label: Container
content: Box 61, Folder 5
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials