| Author: | Ilsley, L. C. |
|---|---|
| Year: | 1928 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| Series: | Information circular / United States Department of Commerce, Bureau of Mines ; |
| Report Number: | 6082 |
| Subjects: | Coal-mining machinery--Safety--Great Britain |
| Coal mines and mining--Great Britain | |
| Link: | https://hdl.handle.net/2027/mdp.39015078516930 |