All the new ones are made at the RC Mint, they are gold plated and won't have the finish rub off. The bar on these ones is very thick and ugly looking though. Unfortunately, my GCS is like yours, and the finish is rubbing off on the centre. If it gets worse, I'm going to get a replacement medal sent in. I don't think there's much you can do with it, as the finish looks like its just painted on the dull coloured ones.