I must admit I was some what surprised when I checked this morning the REA results for the two 3.5 copies of the 52 Mantle, especially the SGC copy. IMO, the SGC copies of this card have typically sold for less than an equal conditioned PSA copy (an OC SGC 50 sold in Feb for $17.6K). In this case, it is understandable why the SGC copy sold for what it did.....the only question is how soon will this card be offered again in a new holder sans the staining (and what will it's new grade be)?
http://bid.robertedwardauctions.com/...searchin=title
I asked the same question with this copy:
http://www.ebay.com/itm/1952-Topps-3...4AAOSw32lY1Ys5