But it still has slight anachronistic errors.   I call it artistic anachronism. If you look closely, the eagle on the coin has different feathers than the one on the emblem. The eagle emblem has modern feathers.

Where is the branch? Can you send a link? The Wiki is it's own repository, technically, but I don't think PRs can be opened on it. Instead users with contributor status can make changes directly. When I said you'd receive the status by getting the first PR of you merged, I meant the main (code) repository. While we're waiting for someone able to give you the permissions, I can just manually add your changes myself, if you want.

Testing some concepts with AI.

Additionally, I did another experiment with the AI, but it went wrong, and since it was free (free ai version of grok service), I can't fix it. The result isn't ugly in itself, it just looks very modern. And the other problem was proportion. The head looks modern The feathers look modern; the eagle's finish seems more from this era than from the Roman one.    

Using AI.   Palmyran eagle. We must not forget that they are a Roman-Semites civilization and after all.   I would add some other additional symbol.