I recently bought a small
Trajan bronze that, although with a different
reverse, looked surprisingly similar in
style and surface texture to this coin. It also
had an irregular edge with file marks, as well as traces of a green
patina in the deeper areas.
I was unsure about its authenticity when I got it, although it certainly looked suspicious. Eventually, the seller listed several more
Trajan coins, all of which were
identical to the one I purchased from him. That pretty much ended any doubts as to the authenticity of the coin.
My guess is that you'll see other coins like yours for sale in the near future. I have no doubt that it is a
cast fake.
Stan