I've been buying old paper off of ebay for quite awhile. I have no idea how it was stored, I'm sure not in a freezer most of the time. Most is good, some need Benzotriazle added. But I'm talking 55years or older paper. Some as old as 1914.

In fact I just received some 1921 5x7 Azo today. Well see if it is any good.

Randy