Panasonic type HM-4N mercury cell
date: label: date made
content: ca 1982
name: label: maker
content: Matsushita
notes: label: Description (Brief)
content: Panasonic type HM-4N mercury cell. 5.6V, 4NR52, PX32. "NR52 + Japan" on bottom. Removed from Morsephone model KH-270B unit.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from PhoneTel Communications Inc., thru Daniel Henderson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2000.0101.09.02
label: catalog number
content: 2000.0101.09.02
label: accession number
content: 2000.0101
objectType: label: Object Name
content: battery
physicalDescription: label: Measurements
content: overall: 1 3/4 in x 5/8 in; 4.445 cm x 1.5875 cm