I would pick these up for that price if they were Capris. That grill is not original and is probably homemade, maybe from a light diffuser for ceiling lights. Only way to know what these really are is to open them up and see what's inside.
If the drivers (all four, that is) all work, I'd buy those all day for $50. I'd consider 'em @ 75... and just wander away if they were any more than that.
There is some value in the University coaxes.
Was listening to a pair of University 6303 15'' diffaxials today on a electrohome pp el84 tube amp in large homemade cabinets with old jensen horns mounted with them....very smooth,great sound