Thanks a lot for the swift reply and the advice. I will post photos later today or tomorrow.
I have seen some for sale graded/authenticated. Does it make sense for me to do the same? If so, which company should I use?
Right now ANACS is the only company that will grade physical cryptocoins for about $20 per coin.
The grading will give an overall rating on the coin, which sometimes can command a premium if the coin receives a high enough rating, such as an MS69 or even the perfect MS70
And the slabs also protect your coins as well, as they are sealed inside, protected from the elements!!

thanks