I have seen the video clip several times today. When the crewman exit's the boat, something that looks very much like your lamp, can be seen hanging from a lanyard. You mentioned Bundesmarine. If the Bundesmarine was reactivated at the same time as the Bundesluftwaffe and Heer, I believe that would make it, late fifties. Please, correct me if I am wrong. I think that your lamp looks older than that. I must add, that I am no expert, so it's only my personal thaugts, but if it was from the fifties, wouldn't it have some sort of Nato style number, and maybe a synthetic lanyard? I think that you have a very interesting lamp, and as you say, it might be late war Luftwaffe, or it might be a lamp specially designed for the K-men. I have seen a few of the more "ordinary" Luftwaffe beacon lamps, and I seem to remember, that these lamps allso lacks the Luftwaffe Fl. number. I really hope that you can get it confirmed as a K-man's beacon lamp. That would make it a real rarity, I think. Snoopy