Looking for This Horn

I didn’t know where else to post this, so I’m sorry if I’m in the wrong place.

This horn was used out at the Kansas Coliseum until 2009.I think it sounds a Prime 990 but wanted to check with y’all. And where I could find another one.

Appreciate any help I can get!

https://www.youtube.com/watch?v=BB6kJRZJS1o