In Norse mythology, ravens are considered holy birds.
The two most important ravens are Huginn (from Old Norse thought) and Muninn (Old Norse memory). They fly all over the world of Men (Midgard), and bring information to the god Odin.
Huginn and Muninn are attested in the Poetic Edda, compiled in the 13th century from earlier traditional sources.
This one of a kind pendant features a Raven's skull (Huginn or Muninn..Have your pick!) with a Helm of Awe on top.