Picked this one up a while back. Grey Pearl OS Balance, but with gold-filled, not the expected chrome-plated trim. And, with flat-ball instead of radius clip. No doubt those Canadians did some odd things. This one is a gem. No, those are not toothies in the top, but rather weird pattern in the plastic. http://vacumania.com/penteech/sheafferbalanceosreversetrim.jpg regards David