Perserving Kellog 3-D's
 

I have three '75 sets, one in three card panels, that have that inherent curl. I'd like to protect and store in flat sleeves; however, I attempted this once and had a bad outcome. About two years ago I slipped a curled '75 Ryan directly into a semi-ridged thinking it would "relax" it flat over time, but only to have it spontaneously crack after being fine for months. Has anyone found a way best to un-curl these and store while decreasing the risk of cracking? Thanks for any help.

There was a discussion on this topic in an old thread that was renewed within the last few days, you might find some info there. My thoughts are that, first of all, as a collector of Kellogg's, I feel your pain. My only advice is that if they are flat or just have a mild curl you can store them in pages in albums which are standing up which lessens the pressure since there is no weight on the pages. Secondly, my personal rule is that if it came to me flat, I leave it flat. If it comes with curl, I leave it curled. I have several NM or better '71s that have mild curl, so I have placed them in thick game used card top loaders. It allows them the protection of the holder, but allows them to retain that little bit of curl without putting pressure on and risking cracking. Others may have there own ideas to offer, that's just my two cents. Good luck with them, those '75 are beauties.

Thanks for reply, found it: http://www.net54baseball.com/showthread.php?t=195984. Think I'll leave them alone for now. Thanks again