started collecting gold coins earlier in the year and last month bought the one ounce indian head gold coin. I was surprised when I went in to pick it up that it was shrink wrapped in ugly packaging from the US Mint. The dealer told me not to remove it from the package, but I wanted to put it with my others in air tight plastic cases. When I cut the coin out of the plastic, the front came off easily, but the back is completely stuck to the coin. I tried to use tweezers to remove it. Not working. Any suggestions to get this back sheet of plastic off my coin?