To be honest to me it was more proof that he couldn't do what he was claiming. As far as I recall the intricate design was already done and it just showed him butchering the coin with a hand tool. A lot of people called him out on it so that's probably another reason he took the video down. I'm surprised he posted it at all for numerous reasons really.
Here's a collection of the better screen grabs from the video:




The completed coin was never seen as far as I know.