One more thing. I store my collection (not just baseball, but historical--and quite valuable, autographs, e.g., Newton, Einstein, The Beatles, Houdini...) in a fireproof safe. It's guaranteed to keep the contents at a temperature of no more than 300º F through two hours of a 2000º F fire. Paper, mylar, baseballs, all survive unscathed at 300º. This is a ball cube after five minutes at that temperature. (And remember slabs are made of the identical plastic.)
|