These are the pricey, highest-quality or extremely rare, almost impossible for us to release-them-from-our collection pieces. They are all book pieces and listed in most of the Christmas tree pin books. Many are front-of-the cover pieces or were made in limited editions because of price or difficulty level of manufacture. Some examples would be many of the Bauers, the Haglers, Weiss, Har, Carnegie and Sphinx. We also, occasionally, sell non-release production pieces that we've picked up at auctions over the years.