Plan, Transverse and Longitudinal Sections

Scope and Content

Maes y Safn Mines [No. 4 and Grosvenor Shafts]. Dates work done in Grosvenor Shaft, 1862-3.

Surveyor Henry Dennis.

Scale: 1 inch to 5 fathoms [176 inches to one mile - 1:360].

215cm x 118cm.


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