standard, yard-matrix
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MC.309586
label: catalog number
content: 309586
label: accession number
content: 103830
objectType: label: Object Name
content: Standard, Yard-Matrix
label: Object Name
content: Yard bar and matrix