Average thickness of coal beds
name: label: Collection Creator
content: Coxe Brothers and Company, Inc. (Drifton, Pennsylvania)
label: Collection Collector
content: National Museum of American History (U.S.). Division of History of Technology
label: Collection Collector
content: National Museum of American History (U.S.). Division of Work and Industry
label: Collection Collector
content: National Museum of American History (U.S.). Division of Extractive Industries
setName: label: See more items in
content: Coxe Brothers Collection
label: See more items in
content: Coxe Brothers Collection / Series 7: Maps / 7.16: Mining Maps (15-)
unitdate: label: Date
content: 1916
container: label: Container
content: Box 53, Item 15-30
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials