Written on verso: Portal of audit #2, Jim Lawler facing the camera. Vulcan used exclusively here in the hardest rock of the whole tunnel line<br><br>PH Coll 103.14a
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Unknown author<span style="display: none;">Unknown author</span></div>
1925<div style="display: none;">date QS:P571,+1925-00-00T00:00:00Z/9</div>
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