Those are 1992 Record PDS pedals. NOT "clipless"; a sort of specific pedal that uses a clete. The site you listed causes more confusion than anything. C180 refers to a range of components, much less specific to pedals. SGR-1 , a dif. pedal entirely use a look type plate for the shoe.
After '92, Campy pedals used Look...change upon change... ended-up similar but slightly dif. than Look.
Your pedals ought to have that thin black plate acroos the front as well.
Such pedals are of no interest to anyone other than individuals interested in that old pedal; period correct etc. They were a flop, a day late and a dollar short. Campy always floundered with pedals. The dudes at Y. Jers. etc. may dig 'em, ask 'em. Certain types in e-bay might also; put 'em up at 25, if one guy wants 'em..25 it is; if 2 or 3 more do... who knows. Shimano made the best platform pedal w/toe straps, many feel the same way I do. Few actually wish to USE those ones.