Technical Disc Brake gurus: Need help ID'ing these front calipers

I recently bought a '67 Nova that a prior owner swapped out the drums for disc's. I'm trying to ID what kit he used so I can source pads and rotors in the future. I even emailed CCP and Right Stuff with pictures and they came back and both said that the kit wasn't theirs. The calipers are not the common D52 calipers you see on many conversion kits. If you have a moment, please glance at the attached pictures and see if these calipers look familiar. Any help would be appreciated. Thanks!

 

If they have any discernible letters or numbers try a google search; it might get you something.

 

Are they some sort of Aluminum knock off caliper design ?