Keystone Blue Paper Company
name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Art
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Art / 10: Manufacturers and Retailers of Art Materials
container: label: Container
content: Box 9, Folder 18
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents note
content: Philadelphia, Pennsylvania