It looks like the very first version, with not only the chromed arms and the built-in cable stop, but also - as repechage notes - the screw retention of the arms. It's the kind of thing Campagnolo collectors search high and low for to fill spots in their display cases - I don't believe it was made for very long. The kind of thing that, when one sells on ebay, someone here immediately posts the auction in a new thread and someone can't resist adding that "fool and his money" quote, people way overuse exclamation marks - you know the drill.