- Smithsonian Institution
- National Museum of American History, Kenneth E. Behring Center
This piece of cannel coal came from the Cedar Grove Coal seam in Logan County, West Virginia. Coal powered early industrial America—first used to fire steam engines and make steel, later to generate electricity and manufacture chemicals. In 1900 almost 2% of Americans were employed as coal miners. Currently not on view.
- United States Department of the Interior. Bureau of Mines