[History Hunter]

Can anybody help me with a fair value? I want to sell these, since I have some new wheels now. I'm not looking to bilk anybody, just want to get a fair price. By the way, they weigh 20 pounds each (they are 8.5 and 10.5 width, but seem to weigh about the same). I think that means they may be Magnesium? Any help from more experienced people would be greatly appreciated.