Sorry about the crappy quality. I took it on my phone. I had I had a camera, I would have used it, but I wasn't on a siren hunt, I was doing stuff for school; namely flying someone in for a meeting today. This 2001 looks like it's been here for awhile. That metal attatchment you see off to the right of the siren is a obstruction beacon, Which Dallas has installed on the T-Bolt poles near all the airports in the city, and it looks like they just used the same pole the 'Bolt was on. I think that it was at Fire Station 48. (maybe 46). Anyway, Dallas is making progress on their replacement.