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| Colliery Engineering | December, 1933 |
The Harton Coal Co. Ltd. II
Drawings and Photographs accompanying the article
Fig. 12 — Horsepower/time curve with double decking
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Fig. 12 — Horsepower/time curve with double decking
Image Reference: L-00409-03-0065-F12
Article reproduced from a copy of the magazine held at National Mining Museum Scotland, Newtongrange, Midlothian.
Contains public sector information licensed under the 
