Not much information on this one bar the 'road' names, of which, they may have connections to the Canadian Tunnellers who were dispatched to Gibraltar in 1940.
More information on them can be seen here...
https://cmea-agmc.ca/heritage-moment/canadian-tunnellers-tackle-gibraltar
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D-UK
More information on them can be seen here...
https://cmea-agmc.ca/heritage-moment/canadian-tunnellers-tackle-gibraltar
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D-UK
