Said to be a unused casting from the production molds. Hard to verify that it isn't a re-cast (i.e. mold created off an original piece and a resin copy made from that new mold). Best way to check would be to verify the age of the resin. The COA created by the previous owners doesn't assure me of its authenticity. However, emily007 has a lot of stop motion pieces in their ebay store (worth checking it out), so it's possible it's genuine.
Auction HERE, by emily007