Can anyone name the manufacturer?

A few of the projectors in our classrooms are held in cages. Getting some new projectors and I'd like to just replace the mounting plate with an appropriate one to make use of the existing mount & wiring. However, there are no identifying markings on the cage and they were installed way before I was here.

I've been informed they were purchased with the projectors through Tempus. So I'm hoping they might have used them elsewhere and a clue could come my way.

Attachment 13703Attachment 13704

Just being hopeful and trying to avoid installing a new mount :)

Heh, I know I've got a school with a few of those in - in place of proper mounts we had to hang projectors out of the side of it due to the lens being on the wrong side :(
Sorry, no idea on name - I do however know they were installed there by NS Optimum. I suspect they may be Sahara.