It is actually the second year of production Gran Sport. As so often happens, Campagnolo had to fill the supply chain in the first year, so many shops and mechanics bought the first year, but they didn't always sell through to an end client as it was reasonably expensive, so far fewer retailers bought the second year, making it quite a bit rarer than the first year. I have sold 7 first year Gran Sport derailleurs over the years and only 2 of the second year ones. Due to rarity, it should cost more than the first year derailleur, but the first year still trumps the second year.