I've never seen another pin like this, although the snake head looks a lot like those in many of my old snake jewelry pieces from the 1940's or before. It has pink and black enameling on the head. Definitely has an Art Deco look. It measures about 3-1/2", has a long pin, and can be worn horizontally or vertically or diagonally - pretty much any way you like! Minor enamel loss. It is in nice vintage condition, and will make a unique addition to your snake jewelry collection.