So i happened across a estate sale today. I was doing some digging and came across 2 big boxes of signed baseballs. Most are from the 80's, some from the 70's and 60's. They where stored for a year wrapped in newspaper. They stink to the high heavens of mildew. The funny thing not much toning or water damage, sigs have not faded much either.

My only issues is they are smell like mildew. Any safe way to remove the smell ?