The images are a little small to justify any certainty regarding authenticity, but I don't see any obvious evidence causing doubt. The details are high AU - I tend to agree with supgog's opinion regarding cleaning - and if authentic, the coin is worth something over US$400 (at least).
If it is your intent to liquidate this coin at some point, I would definitely have it graded and authenticated. Your primary buying audience would be in the US, and they will want to see this coin in a slab.
If it is your intent to liquidate this coin at some point, I would definitely have it graded and authenticated. Your primary buying audience would be in the US, and they will want to see this coin in a slab.




















