The newer style NGC
slabs are a bit
more difficult. Instead of two halves joining together on the side
, the top piece of the slab rests down inside the back piece, so the old method of just tapping around the edges to break the seal no longer works.
I've found that hitting a corner to crack/shatter a piece to come off and them using a pliers to move around the edge of the slab and break off the rim
seems to work
Yes, the new NGC
slabs are quite difficult to get into.
Some time ago I got a Cnut penny (see below) in one of the new NGC
slabs. The coin is no thicker than a thick piece of paper, and so is very fragile. Vises, pliers, and hammers were out of the question. In the end, I placed the slab between 2 pieces of wood
in a vise to hold it steady, and then used a saw with a very thin blade to saw off the bottom of the slab. I was then able to get a small screwdriver into the bottom of the slab. Using a twisting and prying motion with the screwdriver, I was able to work
my way up both sides of the slab until the top piece popped off. One piece of advice: Go slow.https://www.forumancientcoins.com/gallery/thumbnails.php?album=4762