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| Colliery Engineering | July, 1955 |
The Ploughability of coal seams — Part 3
Drawings and Photographs accompanying the article
Fig. 25. Tests at floor level and 24 in. above the floor
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Fig. 25. Tests at floor level and 24 in. above the floor
Image Reference: L-00531-03-0065-F25
Article reproduced from a copy of the magazine held at National Mining Museum Scotland, Newtongrange, Midlothian.
Contains public sector information licensed under the 
