There'a a document in the National Archives that I was finally able to see and take photos of every page. Here it is for your viewing pleasure =)
Approx 38 MB.
http://civildefensesirens.com/Posts/OCD ... 0Funds.pdf
Going off cities with sirens system that I know, these seem to be how they generally line up. Of course there are many manufacturers.
612: Model 2
613: Model 5
614: SD-10
615: SD-10 / 2T22
616:
617: Thunderbolt / Allertor
618: Hurricane?
619: Chrysler Air Raid Siren