An old hand-carved Tibetan Chop Seal with the face of one of the Buddhist Demons...a Mahakala to prevent corruption.  

This chop is hand-carved from red resin (the first photo shows how beautiful it is with the light coming through it).  It is 2 7/8" tall, weighs 1.07 oz. and has a Buddhist symbol on the bottom.  There are matching faces on both sides (I have shown both sides in the photos).  There is also a hole in the top so the chop can be suspended from a leather thong.