Trotobas was the head of the Syvestre-Farmer network in Lille, France. The network was dedicated to sabotage of German railroads and military facilities in World War II.
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OGL 3
National Army Museum. London. <a rel="nofollow" class="external free" href="https://collection.nam.ac.uk/detail.php?acc=1997-04-66-15">https://collection.nam.ac.uk/detail.php?acc=1997-04-66-15</a>