Date:1920 - 1929 (c.)
Description:Rock drill designed by James Hanson for W.H. Dorman of Stafford. This photograph shows the complete drill.
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James Hanson demonstrating the rock drill he designed. James is second from left holding the drill bit ...
Rock drill designed by James Hanson for W.H. Dorman of Stafford. This photograph shows the complete ...
Testing the rock drill designed by James Hanson for W.H. Dorman of Stafford. The drill is shown mounted ...
Rock drill designed by James Hanson for W.H. Dorman of Stafford. It is shown here with the cylinder ...
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Image courtesy of: Mr Roger Thomas
Donor ref:(55/32717)
Source: Miscellaneous Collection
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