This pin is part of a Mystery set of pins that are being sold in silver packs, 2 pins per pack. This mask is Hades from Hercules. The mask is dark blue with lighter blue flames across the top and a gray scarf on the right side with a skull clasp. The HM is just above the right eye. The back of the pin has the waffle Mickey design, the right box is the pin trading logo, bottom left box says "Hidden Disney Pin / 1 of 5. The upper left box is the Disney trademark and Made in China. There is one nub, under the pin post. The pins in this set are Maleficent, Evil Queen, Hook, Hades, Dr. Facilier, Frollo - chaser(completer) and Super Completer Mickey. The Mystery sets in this series are Lion King, Castle Fill, Pixar - A Bugs Life, Star Wars Droids, Marvel Icons and Carnevale Masks.