Dollar Uncirculated

Why is there wire in my clear, uncirculated roll of washington dollars?

I received a few rolls of presidential dollar coins, for a gift, a while back. I was looking at one and it appears to have a wire inside the case, with the dollar coins. The case is sealed shut with a world reserve sticker on it. What is it? It is a roll of twelve George Washington coins.

I would think that it would indicate that the roll is “uncirculated”. If the wire had been disturbed, it would be “circulated”.

1878 Uncirculated Tail-Feather Morgan Silver Dollars – S…