Those are Motiograph amps, Lisenced by WE... I had one of those I sold this past year.. I gave up on the search for a second one..
I also had the power supply for the head unit of the projector, and the pre-amp for the volume control.. I had two of those cages.. The cages alone can go for $300 to $400 a pair...
Those are the harder to find 7505 A models.. I found plenty of B and a couple C's though...
You should hear that amp on an Altec A7... just incredible sounding..
I wish I could have found a second... There is a guy in the area I live in that has been listing a pair on ebay and CL for a couple years now, and won't take a penny less than $6500.. I've talked to him about it, and he just won't lower it.. and so far as I know, he still hasn't sold them..
BTW, I can't believe the guy doesn't have a picture of the inside of those amps.. they are laid out really nice on the inside too...
OH.. and until you see one of those in person, you have no idea how HUGE the iron on those things are.. by far the largest iron I've ever seen on a tube amp.. twice the size of the peerless iron on the old Altec tubes..