CD-1140 guy-wire strain insulator with wire stubs
notes: label: Description (Brief)
content: CD-1140 glass guy-wire insulator with steel wire stubs, also refereed to as a “Johnny Ball” insulator, type JB 40. No extant maker marks. Donor supplied the following information: “[JB40] was found during road construction in a large trash pit dating back to the Great Fire of 1906 in San Francisco. A large twisted mass of these were found and the one was the best one.” [i.e., in the best physical condition.]
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Brian Riecker
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2017.0094.01
label: accession number
content: 2017.0094
label: catalog number
content: 2017.0094.01
label: collector/donor number
content: CD-1140
objectType: label: Object Name
content: insulator
physicalDescription: label: Measurements
content: insulator only: 3 1/2 in x 3 in; 8.89 cm x 7.62 cm
label: Measurements
content: with wire stubs: 19 1/2 in x 3 1/2 in x 3 1/4 in; 49.53 cm x 8.89 cm x 8.255 cm