Excuse me if I'm posting in the wrong forum.
I bought this thing off of eBay a few years ago, around 2020 or 2019 I think. It came from an owner who lives (or lived) in Denver, CO. They also did a very poor paint job on this, but I will be restoring this one soon. It does work. Not entirely sure if it was originally installed in Denver, but the siren itself "was installed on a building built in 1960." What's strange about this one is that it has a straight intake while most other Model D's I've seen have a curved intake. This almost makes me think this is a Model L sometimes, but the tag says it's a Model D. Can anyone help me out with identifying this one? Would also like to figure out which year this one was built.