I would love to have these certificates, just need to figure out the addresses of the coins I have, which is hard to do as I cannot currently access my collection.
I already have so many Bitcoin Pennies (I think I have over 120 left to give away), so I'm not sure if I want to buy a whole roll, but I do want one of the new 2017 Bitcoin Pennies and a special mint SN / S. NAKAMOTO coin.