Are these any danger to causing PVC damage to coins?
I am planning on buying ungraded coins from time to time and sending them to PCGS or NGC for grading. I was wondering are these type of cardboard holders are any danger for coins? I believe they are made of mylar but I am no expert on plastic types.
Interest: Latin American history with an emphasis on colonial Mexico & Peru
Sports: NHL & NFL
Thank you Lord for another beautiful day!!!