Question Regarding Storage Of Old Mint Sets

I knew early on the '68 cents were going to be a problem. Most were bright, lustrous and shinier than a new penny but even in the '70's a few were hazing, spotting, and corroding. I had no idea how severe the problem would become. I did yank some of these out of the set and soak in alcohol but I saved the nicest 20 sets I had seen over the years in a safety deposit box in a temperature controlled vault and when I found them qa couple years back the entire set in most cases were damaged including all of the Philly cents. Probably due to the good storage almost all of the coins and most of the cents could be salvaged.

It might be a mistake to cut all these sets but I figure in the long term they will all go bad anyway. It is apparent that the longer a set stays bad the less likely it can be salvaged. For these reasons I'm cutting them anyway.

Good luck.