Hor Siro Drone 10 port is the conclusion I came to. Windup is linear (induction motor) so not a model 2. Wind up, wind down, and tone have same characteristics as a Siro Drone, and considering that it is an old American recording, from when there were more of them around, I can't imagine it would be anything else. There is even another (less common) siren stock audio clip that is also a Siro Drone (albeit a different variation) from closer up. Was used in the trailer for Silent Hill (different siren in actual movie) as well as a couple other things. As far as how old this recording is, it is from at least the early 80s (used in the song "Escape" on Metallica's 1984 album "Ride the Lightning."
Silent Hill trailer, Hor Siro Drone at 1:28
Hor Siro Drone
A different Hor Siro Drone variation that sounds like the Silent Hill trailer siren