My vintage carbon lamp I bought from the original Boston Garden just as demolition began. Probably installed in the late 50's-early 60's and in regular use until 1997. Beatles, Stones, Hendrix, Zeppelin, Ice Capades, everyone who performed there was illuminated by this and three others that were in place. Untold thousands of these units were used around the world until safer Xenon lamps gradually replaced them. Most of these were scrapped after they were retired so now only a few are left, even fewer in running condition. Comes with a fistful of new rods, the upgraded external power supply and instruction if desired. See it in action here: