Telegraph crossarm, pin and insulator
date: label: date made
content: ca 1849
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from W. H. Thomas thru F. L. Schriver
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.180133.03
label: catalog number
content: 180133.03
label: accession number
content: 22820
objectType: label: Object Name
content: Insulator
label: Object Name
content: crossarm and insulator
label: Other Terms
content: Insulator; Insulation
physicalDescription: label: Measurements
content: overall: 10 in x 8 1/4 in x 3 1/4 in; 25.4 cm x 20.955 cm x 8.255 cm
label: Measurements
content: insulator only: 4 1/4 in x 3 1/4 in; 10.795 cm x 8.255 cm
label: Measurements
content: base only: 3 1/2 in x 8 1/4 in x 3 1/4 in; 8.89 cm x 20.955 cm x 8.255 cm
label: Measurements
content: pin only: 9 in x 2 in; 22.86 cm x 5.08 cm