Awesome work here! 

You might want to consider moving this post to the collectibles section - https://bitcointalk.org/index.php?board=217.0

That board/this site is where the "birth" of the physical bitcoin came to be.  I did a quite little historical timeline write up for example- https://bitcointalk.org/index.php?topic=5174217.0

Either way, you should post about this on the collectibles board, everyone there would really appreciate it!