I believe this is a Williams-Celestron cold camera, but I'm not 100% sure. Also included is an extra set of optics, battery cable for the heating element to reduce condensation, and a film plane viewer that I believe is parafocal to the film plane. I have not used this equipment, but it was given to me by a friend who used it frequently before converting to digital. I have described everything the best I can - ask questions if you are unsure about anything.
I also have a bunch of film hypering equipment for sale/trade (Small and Medium Format Hyper Chambers, Medium Format Plate Holders, Cylinders of Forming Gas Temp Controller w/Probe, Electric vacuum Pump, Hand Vacuum Pump, Medium Format Camera). I can send pictures if you're interested.