Maybe this was indeed a replacement pinchbolt but I swear I've seen this on other Cinelli stems offered on eBay. I believe this style is rarer than the later one but until this happened I must admit I never gave Cinelli stems much thought! Now whenever I ride with one, I shall contemplate with no small measure of fear and dread! And this from a guy who has been happy to ride his PX-10 with an AVA "death stem"!
Peter Kohler
Washington DC USA