Found this display at our local antique shop. It came with 18 packages of 5 blades each. There seems to be some film on the blade. I'll probably take a blade, clean it up, and try to shave with it.
I've searched the net but haven't found much information on these.
Also a the shop were two Durham Duplex straights (it looked like a straight anyway), a Durham Duplex DE razor, an ugly nylon brush, a couple of other old brushes (Ever-something) and a couple of shaving mugs. Oh, and a Twinplex razor blade stropper in what looks to be great shape. I may go back for that. It was cheap. There was one completely red, (except the head), open comb razor. No name on it, and it seemed overpriced.