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name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Office Equipment
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Office Equipment / Business Records and Marketing Material
unitdate: label: Date
content: 1877-1934
container: label: Container
content: Box 3, Folder 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents
content: Includes some materials for Library Bureau.  Proposal/Quote: A 2 1/4" Combination Pressure Start and Stop Pneumatic Tube System with Gravity Return (2 copies, 1921 June, Lamson Company).