What Roger said.
A lot of oosic is quite ugly, IMO. But, so is some ivory or some pieces of stag I have seen. It just depends on the piece.
This particular piece kind of looks like something a dog might leave in my yard. However, from what I've been told by a number of makers, oosic is extremely stable and durable. If you get the right piece, it can look nice on certain knives.
This knife really has excellent fit and finish and the Damascus fittings kind of help this oosic piece a little.
I bought this from Knifeart a long time ago.
The Daniel Winkler Bowie that is being made for me as I write this will have oosic, which I purposely ordered that way.
I wanted to add a certain look to the knife and thought oosic would do the trick on this frontier style knife without the instability and cracking that Mammoth ivory has at times. However, IMO, Mammoth ivory is a much prettier material overall.
Edited to add:
The above pictures were way too dark so I lightened them a little. This looks more like the real thing, not so dark.