To Make A Short Story Long...my 1914-D

*If* the green stuff is verdigris then you can use BadThad's Verdigone to remove it.

http://verdigone.com/

Otherwise, for removal of general crud, Thad has recommended that xylene is better on copper than acetone, but an acetone dip certainly wouldn't hurt it.

I know its hard to answer without the coin in hand but does anyone think the coin is worth trying to save? Is it too far gone?

If so, where can I find xylene?

it is well worth trying to save even in that condition someone would still pay you over 200 dollars

If this were my long lost coin, I would definitely give Verdigone a chance!

I wouldn't bother with NCS. Even NCS cannot save this coin. I've seen similar coins sent to NCS and they don't even try to remove the verdigris in most cases. This coin is going to be considered environmentally damaged no matter how it's conserved. The surface will absolutely be pitted once the verdigris is cleared out or, more likely, partially removed. The coin is toast. However, it is still valuable and rare. Even with the enviro damage, if could fetch $200 or more depending on how much detail is left and how well it is conserved.

My advice....be VERY careful General. You might want to have someone more experienced conserve the coin for you. It would be VERY easy for you (as a rookie) to completely ruin the coin by "over working" it. There's a delicate balance between conserving and cleaning a coin....most rookies end up cleaning (and ruining) a coin.

DON"T Clean it. A 1914 D is valuable in almost any condition. Try the conservation methods detailed above. Then what you get is what it is.

Yes, do not clean it! You're better off leaving it as is before you harshly clean it. Too many coins have been soaked in coke or vinegar or whatever and completely ruined. If you're not comfortable, rinse with acetone and put it in an Airtite and be done.