McCalvey Elevator Works, Philadelphia, Pennsylvania
name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Elevators
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Elevators / 1: Companies
container: label: Container
content: Box 1, Folder 22
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials