Go to the
Collectibles.
You'll see people auctioning it and ask for some help there from experts who have been doing that for years or get an idea how they do it.
Ok, thanks for the guidance!
Just Make sure to Use the Trusted Escrow this Forum ever has because this is a Big value physical coin.
and also Make sure that you can prove the authenticity and the legitimacy of this coin because if you are Fooling people here for sure experts in that section will find that out and the end is your account being tagged.
Casascius coin is very rare and really in demand for the collectors so be sure for what you are dealing,.