I called my friend, He said he got it from Tom Clinton. Came with a croc Sullivan sheath marked croc on the back. I can add pics on f the sheath?

No, that's fine. I love it though!

Eric I want to thank you in advance for selling me that Ivory Clinton special one day LOL!
One of my favorite knives!

Eric,
The center is "definitely" FWI. Only walrus ivory has the crystalized center (nerve area). It looks similar to heating a marble and then quenching it, immediately thereafter, in ice water. (Used to do this to make a marble a more lethal slingshot weapon)...You'll notice this on one side of your handle center. Hope this helps.
Best, Capt. Chris

Capt. Chris, That explains the pattern perfectly. Have you seen any other handle examples using what looks to be a solid black micarta section? Is the sheath correct for an early Model 26? Thanks, Eric

I have never seen a Randall shop-supplied rig like this one. The very first Pathfinders (before they were a catalog Model #) came in a variety of sheaths. Sullivans, like the one you have were used fairly early but some of the old Johnson (Johnny Johnson) pouch sheaths (sheath type / no keeper strap) were used early on. I hate to speculate as to why, how, who, etc...but they could well have been spare sheaths, laying around the Randall shop...not being model-specific, and working quite well.
I'll dig up an example and post it later on. Right now, and for the past 2 days, I have been working on a new "redneck photo-shootin' project"...more to come...
Best, Capt. Chris

Eric, your sheath is correct for an early Model 26 Pathfinder. Here is my 1992 Rick Bowles Ivory embellished knife and correct sheath for comparison.

Thanks Guys for the expertise.....and a BIG Happy Fathers Day to all!

Same to you Sir!

Just won the lottery..