| Type | Books |
|---|---|
| Theme | Mining |
| Country of Origin | United Kingdom |
| Modified Item | No |
Check the listing for details. Practical Coal-Mining 6 Volumes – 1907 Illustrated Tech & Miners Lamps. Made in United Kingdom. Listed at 156.32 USD. This makes the set especially valuable to collectors and researchers of mine lighting history. VI: Coal Preparation, Economics & Labour – Discusses coal sorting, grading, market economics, labor issues, legislation, and the socio-economic impact of the mining industry.