This one must be older than mine too, this one has slotted screws instead of Robertson screws and has yellow paint under the visors. It might be old enough to use glass reflectors.
I think this one has plastic lenses, they are arrows anyway's. I wish whoever set this up originally didn't drill that huge hole for the wire in the back, it kind of ruins the signal.
@Devonte, what the heck?
I think they may of, but it was about a year ago and I don't fully remember, I'm likely heading to the museum tomorrow and I'll see if I can get a shot of the inside.
All the signals stayed up here when they switched to those nonpixilated LEDs. We don't have many old traffic signals here anyways. the older vomit green ones in providence got replaced with more eye-pleasing black signals. Every other city uses yellow signals though.
@Devonte, what the heck?
Did you take a look inside?
Oakville might still use aluminium heads though, I've seen aluminium 12" LED Econolites installed as recently as 2009.