I'm selling a set of Bitbills and a 10 BTC silver Casascius coin on GreatCollections. They are all graded and slabbed by PCGS.

https://www.greatcollections.com/Series/158/Physical-Bitcoins-Other-Crypto



If you are interested in bidding, be sure to create an account on GreatCollections and ask for a bid limit increase days before the auction ends!