Category:Tunnel boring machines in Toronto

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Media in category "Tunnel boring machines in Toronto"

The following 2 files are in this category, out of 2 total.

19th century boring machine, in Toronto -a.jpg 1,028 × 837; 194 KB
19th century boring machine, in Toronto -b.jpg 1,020 × 819; 127 KB

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Tunnel boring machines in Canada