They look like well worn KU36's, still mostly legal but nearly down to the tread wear indicators. 235 x 45 17's but they fit more like 265's as they are made wider for some reason. They are still on the rims though, what do you want them for?
I have some other tyres here too, Federal 595's you could have cheap. I'm in Hampton Park, are you local? Drop in and check them out.