I've looked into some of your undetermined sirens and found no notable pieces of evidence except one: Lowry, MN The siren on the water tower was also an Eclipse-8, as soon by this streetview from August 2018. The shape of the siren does not change between the 2009 and 2018 imagery, so it is likely t...

Ah my mistake, must've not been at the right angle. I was on the closest road I could access via StreetView. Atleast it's still there though.

Another post, but some updates on locations. Many sirens in Northern Ireland appear to have been removed. ---[NORTHERN IRELAND]--- The Carters at Newtownhamilton and Dungiven seems to no longer be there. This can conclude there are no more Carters installed anymore within the whole of Northern Irela...

I'd like to say that 2903 in Swindon is actually a 2905, it shows 5 cells on StreetView.