File:P000095.jpg: Revision history

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12 April 2015

  • curprev 14:0014:00, 12 April 2015‎ Scotfot talk contribs‎ 3,525 bytes +3,525‎ Locharbriggs Quarry. Dumfriesshire. A close-up showing the 'shot-grove' and chisel wedge method of splitting stone. Widely spaced holes are drilled and filled with black powder; once blown and the blocks dislodged, chisel wedges are driven in along pla...
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