Leeds & Northrup Company, Speedomax recorders, 1933, 1953, 1954, 1956, 1958, 1960, 1961, 1963
name: label: Collection Creator
content: Instrument Society of America
setName: label: See more items in
content: Instrument Society of America Collection
label: See more items in
content: Instrument Society of America Collection / Series 3: Trade Literature
container: label: Container
content: Box 73, Folder 2
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials