Looks very similar to the 2000 Goofy Mystery Tour pin. The event was held on May 11, 2001. To participate you either had to be a cast member or be invited by one. Each Cast member was allowed to buy 2 pins. Non-cast members were not allowed to buy the pins. Back reads, "Walt Disney World Cast Exclusive Copyright Disney China". The front is a two layer pin. The bottom layer is a magifying glass. It has a brown handle and "2001" is on the handle. The glass is lime green. The top layer is a head and shoulders of Goofy in Sherlock Holmes garb holding a sign "Goofy's Mystery Tour" The word "Goofy" is outlined in green and "Mystery Tour" is on a brown sign