I was there for an official visit around 1990. A lot of the older buildings were disused even then - particularly those relating to the batch production of NG and the cordite rolling houses. I think that control room you showed may have been for the Biazzi continuous NG production plant. I remember the director telling me it was not uncommon for hard drinkers to down a large quantity of scotch just before leaving the railway station, so they could clock in before the stuff took effect... There was a pond for collecting NG waste water. Apparently it was regularly dynamited to deal with any NG which had accumulated at the bottom.