I have been into coin collecting on and off for the last 15 years. I just started getting back into my hobby and stumbled across this forum while surfing the web for information. The question that I have is when I was going through my collection and doing some research I noticed that I have a 1996 unc. silver eagle which is apparently a key date. The coin is encapsulated and it's starting to tarnish around the edges. Does this affect the value of the coin? How do I go about stopping it? And is there anyway I can fix it? I have 1995 silver eagle that is in a cheap plastic flippy thing and is showing no signs of tarnish. Why would this happen?
Thank you for your time,
Kelly