Has it always been in that bag since you obtained it? Also, in case you didn't know, many plastic materials including bags contain PVC. If the bag you have it in contains PVC, it can damage the coin. Unless you're 100% sure that the bag doesn't isn't made with PVC, take it out and put it in a coin flip, fold piece of card board, etc. Anything but a container that was made with PVC.
No it hasn't always been in a bag . I got it out of some pennies i was looking through that was rolled up in with 49 other coins. Its in the condition i found it in, as soon as i found it i listed it here on listisa because i don't need the coin and was hopping it would find a good home . I put it in a small baggie that beads come in to keep from it being damaged any farther..