patent model, Bunnell electric switchboard, US #215568
date: label: Date made
content: 1879
name: label: maker
content: J. H. Bunnell & Co.
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.308894
label: catalog number
content: 308894
label: accession number
content: 89797
label: patent number
content: 215568
objectType: label: Object Name
content: Switchboard
label: Object Name
content: electrical switchboard
label: Other Terms
content: Switchboard; Telegraphy