Maps and Blueprints
name: label: Collection Author
content: Pennsylvania State Anthracite Mine Cave Commission
setName: label: See more items in
content: Pennsylvania State Anthracite Mine Cave Commission Report
unitdate: label: Date
content: 1912 - 1912
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0180, Series 2
objectType: label: Type
content: Archival materials