Search Results
- IDNO:
- 002132
- Title:
- Thickness of Coal Seam at Long Branch No. 1
- Date:
- 1947/09/26
- Description:
- This picture shows the thickness of the coal seam in relation to a normal doorway.
- IDNO:
- 002140
- Title:
- Coal Seams in Layers of Rock
- IDNO:
- 002158
- Title:
- Miner Marking a Coal Seam
- IDNO:
- 002678
- Title:
- Cavalier No. 206 Mine, Elkhorn No. 3 Seam Showing Top and Bottom Bend