LADIES 1920'S RHINESTONE "ARROW" VELOCITY PIN. THIS PIN IS MADE WITH AN OPEN BACKED LEAD BASED METAL, WITH RHINESTONES SET IN. HAS A SECURE LOCKING PIN BACK. IT IS 2 1/2" X 1". (EDITORIAL. IN THE 1920'S, FLAPPER. JAZZ ERA, STREAMLINED OBJECTS WERE MUCH APPRECIATED. AUTOS, RADIOS, ACTUALLY EVERYTHING WAS STREAMLINED FOR SPEED. "VELOCITY" JEWELRY WAS NO DIFFERENT DEPICTING "SPEED". both speed and direction are required to define VELOCITY.