Cummings System of Reinforced Concrete
name: label: Collection Creator
content: Cummings, Robert A., 1866-1962
setName: label: See more items in
content: Cummings Structural Concrete Company Records
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content: Cummings Structural Concrete Company Records / Series 1: Biographical
unitdate: label: Date
content: 1904-1930 and undated
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0218, Subseries 1.1
objectType: label: Type
content: Archival materials