France
Louis XVI gold 2 Louis d'Or 1786-K (Dot) XF40 ANACS, Bordeaux Mint, KM592.8. The listed grade on the holder seems quite acceptable as there is plenty of luster in the peripheries. The details are still intact and there is little flatness. Someone may have tried to possibly retone the coin as well. Still it's a very pleasing example of the type.
Estimate: 500-800 USD