Found these on ebay and dad bought them. They are pretty big (see the scale with the lightbar!) It's the 85 that Beale tested.
Came from a retired CHP EVOC instructor. We think they may have been up on a wall at the academy, but don't know for sure(they have soft Velcro strips on the back in the corners)
One I've seen before, the other lower to the ground shot I hadn't.
Also got a helicopter poster