The Siren Board

I drove through Tygh Valley, Oregon, and got a couple of new photos of the old Buell horn. It is on a pole outside of a garage that must have been an old fire station. The wiring to the valve terminates in an open, disconnected cutoff switch, and the air line has been cut. There are several of these in Oregon, but this is the only single array I've seen - the others have a second pair of horns set above the other at a right angle. I suspect that most of these were once part of Portland's pre-war system of Buell horns.

Portland had the double array or the one like this, the single?

Millington and Amity have dual horns - from underneath they look like a swastika - but I don't know what Portland used. They were removed in the 1950's.

Wouldn't have been easier for them to stick straight out instead of turning?

They made sets of straight horns too.

Here's a modern outdoor warning horn still sold by Buell:

Still looks like a Nazi symbol TBH. Kahlenberg Signalling also makes horns of a similar fashion: https://www.kahlenberg.com/model-k4-1-enhc-horns.html

Please don't bump topics from 2014. thank you.