I have a few rattlers in my collection but have only purchased one of them specifically to get the old slab. On top of that it turns out that PCGS wants to re-slab the coin before they'll allow it to be added to a registry set -- it's a very old slab. Of course when I would send them the old slabbed coin, per their own t's & c's, they could replace it with another coin of same date, mm, condition but in a new slab. SO I'd lose the old slab that I wanted for my set and that I in fact paid a premium to acquire. This does not make me a happy camper and in fact it is the reason that I have stopped all progress on my PCGS registry sets. Anyway.....
Here's the slab in question.
1953 5C PR66 PCGS - BAD SLAB!!!! by UGotaHaveArt, on Flickr