The "6600 Volts room" onboard the dredge <i>Samuel De Champlain</i>.
Hervé Cozanet
CC BY-SA 3.0
<a rel="nofollow" class="external text" href="http://www.marine-marchande.net/Reportages/SamuelChamplain/SamueldeChamplain.htm">Tour onboard the ship</a>