12x16, 13x16, 14x16, and 15x16 Class A + B Engines, undated
name: label: Collection Author
content: Nagle Engine and Boiler Works
setName: label: See more items in
content: Nagle Engine and Boiler Works Records
label: See more items in
content: Nagle Engine and Boiler Works Records / Series 5: Drawings
container: label: Container
content: Map-folder 29
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials