American compressed air locomotive used in boring the <a href="https://en.wikipedia.org/wiki/en:Rove_Tunnel" class="extiw" title="w:en:Rove Tunnel">w:en:Rove Tunnel</a> in France. This was  losslessly cropped from <a href="//commons.wikimedia.org/wiki/Category:Scientific_American" title="Category:Scientific American">Scientific American</a>'s front cover illustration 25 November 1916.
Vincent Lynch, 1862-1935
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