Hello everyone. Okay, so several fire departments in my county use air horns instead of sirens. Now, I've gotten pretty darn good at identifying sirens thanks to all the time I've spent lurking around here, but I'm kind of lost when it comes to horns. It'd be great if some of you who are more knowledgeable about them could help me identify what models these horns are.
I'm pretty sure that these three are Gamewell Diaphones, am I right?
However I have no idea about these next ones:
This one looks similar to a Gamewell Diaphone, but there are differences.
I'm not sure if this one is the same kind as the one above or not; it looks a little different.
Finally we have this array here. These horns are all a lot shorter than the ones above. It looks like two of them are the same kind, but one is smaller. I have more pictures from different angles (unfortunately none of them turned out well for some reason...) if it's hard to tell from this one.
Any help will be appreciated.