Porter, H. K., Company, Pittsburgh, Pennsylvania
name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Railroads
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Railroads / 3: Manufacturers and Distributors of Railroad Cars, Equipment and Supplies
container: label: Container
content: Box 106, Folder 59-60
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials