Population Density ...
date: label: associated date
content: 1970
setName: label: See more items in
content: Political History: Political History, General History Collection
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN81549Y00
objectType: label: Object Name
content: Map
physicalDescription: label: Physical Description
content: blue (overall color)
label: Physical Description
content: white (overall color)