I'm having a great time hunting for this scarce PCGS slab!
I've been scouring eBay and other sites for the following insert/slab. Apparently, PCGS only minted these for about six weeks toward the end of 1998 (or 1999, as two sources state it differently). It isn't listed in the PCGS Museum of Slabs. I found an Ike a couple of months ago, and recently this Commemorative turned up. I snagged it right away.
Check your collection! Do you have any of these scarce holders?