It's in decent condition. On EBAY it might fetch $40. That is a REALISTIC price. Not much more than that. If it got to $50, I would be shocked. I have no idea where the $250 price that RC Jenson came up with.
Nice find ! But I feel the same here on the value ... be happy with $40 ... happier with $50 and ecstatic on any amount more than that ... beauty is in the eyes of the beholder and value is based on how deep the pockets of the buyer is ... IMHO , Woodstock
I wouldn't clean it up much more than using Ivory soap and a bit of olive oil . Beware of excessive cleaning because it might look smooth now and you'll expose the pitting damage (if any) by over cleaning any coin . If your keeping it that might not be as important to you but if your selling it a cleaning that removes only the dirt is necessary and then let the buyer do the damage ... IMHO , Woodstock