We believe this Fob is a late 1940's or 1950's piece. The back adorns the motor oil message: "Adds Life and Power to all Types and Makes of Motorcars". The word Motorcar was used in the 40's and 50's much more than we have seen after that. The Polarine Polar Bear mascot is in relief on the front of this key fob. It has small detailed decorative work on the front. No lanyard or ring.