Those first ones are early ones. Not sure what year but I would guess 55-57ish. They might be 58-60, IDK but I do know they're pre 61. I picked up 2 of those at the local swap meet last weekend for $20.
Ok after looking at the second link, those might be the 55-57 ones like he says and the first set might be 58-60.
You'll have to make sure you have the correct wheels with the 3 little slots for the clips. The clips can be bought new from Fusick Oldsmobile parts for $4.50 each and they're the 48-52 clips. You'll see them on their site or in their catalog.