I am not an expert, but not too shy to comment either. I like the surface of this coin. While showing its age, it also conveys beauty and a high grade of preservation. I can imagine a minting supervisor picking it up, nodding to himself and thinking "what a piece of work is this coin".
Your picture brings out all the glory this coin was to convey. Stately, yet elegant calligraphy, inspiring the trust the user needs to spend this coin and know that it will not be challenged, but accepted on sight.
Peter