Clarendon, PA Mystery siren

[Greenrid]

Sorry for kind of a triple post, I am working on my mystery siren map. Anyways, I'm confident that this is a mystery siren. It has a gigantic rain cover with no horns. It can't be a FS model, because it's upside down. It could possibly be a very heavily modified STH-10, but I highly doubt it. It does have that STH kind of mounting bracket, though...

https://earth.google.com/web/search/Cla ... cQAjoDCgEw

[Ziginox]

I agree with your assessment, going by size and the bracket I'd say an STH-10 or STL-10 with the horns removed and a new hat put on.

[Greenrid]

I'm not so sure actually, because you can kinda make out chopper ports, and it looks like it has way too many ports to be a STH-10 or STL-10.

[Ziginox]

I can't make out any detail that small from the grainy Google Streetview imagery.
Your best bet is to get some eyes-on and snap some photos, honestly.

[TheCamWheel]

Well, with more observation of this siren, it appears to be dual tone. It may be a modified SD-10 since if you look closely, it appears to have a visible dual tone stator.

[Greenrid]

Well, with more observation of this siren, it appears to be dual tone. I may be a modified SD-10 since if you look closely, it appears to have a visible dual tone stator.

How can you tell it's dual tone? The street view is way to blurry to tell!

[TheCamWheel]

Because you could see divisions on the stator for the ports. So, I think it might just be a modified SD-10 similar to the one in this video. https://www.youtube.com/watch?v=dqkpY_Uw96k