Diffraction Grating
notes: label: Description
content: Speculum metal diffraction grating from the Smithsonian Astrophysical Observatory.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.327695
label: catalog number
content: 327695
label: accession number
content: 268220
objectType: label: Object Name
content: diffraction grating
physicalDescription: label: Measurements
content: overall: 1 1/4 in x 4 in x 4 in; 3.175 cm x 10.16 cm x 10.16 cm