I found a post from somebody that said he had one with Kent Moore KMO965 on one side and Bonney 6967 on the other. I had no luck with that number, either.
That's a circlip wrench, for adjusting the rotational position of circlips.
Years ago my boss sent me out looking for one, along with a watermelon peeler and some AC batteries.
Ever since I found one, I've been looking to collect the whole set but haven't had much luck.