1st Order Lighthouse Lens, Graves Lighthouse in Boston Harbor
setName: label: See more items in
content: Work and Industry: Maritime
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: TR.336931
label: catalog number
content: 336931
label: accession number
content: 1979.0410
objectType: label: Object Name
content: 1st order lighouse lense
label: Object Name
content: 1st order lighouse lens
label: Object Name
content: mercury ballast
physicalDescription: label: Measurements
content: overall (without base): 108 in x 77 in; 274.32 cm x 195.58 cm