Betz, Frank & Co.
name: label: Series Creator
content: Warshaw, Isadore, 1900-1969
setName: label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Medicine
label: See more items in
content: Warshaw Collection of Business Americana Subject Categories: Medicine / 3: Hearing Aids-Deafness-Speech
container: label: Container
content: Box 5, Folder 11
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials