It was still in use while I was in the Navy in 2001, though it was just a red light and not a burning lamp at that point. They used it to close the smoking deck if we were under light discipline conditions (depending upon what part of the world we were sailing through, Straight of Hormuz entering the Persian Gulf off the southern coast of Iran in my experience) or if we were taking on jet fuel durring underway replenishments for obvious reasons. In addition to closing the smoke deck durring happy hour, which is an hour of all-hands housekeeping the ship underwent everyday. It was always a dreaded announcement and the place would get crowded as I'll get out just before and immediately after as all the smokers went looking for their fix (myself included). The Navy as with most service branches, is very fond of nostalgic terminology and tradition. It's a nice way of showing respect for and reminding the present of those who went before. Now if you'll excuse me I need to grab some geedunk to see me through this scuttlebutt session, mind the scupper and have a great weekend all!