This is an example of the types of seals they made. This is their jewelry. Once again, this is quite intricate jewelry. And this jewelry was not just discovered in archeological digs in these various sites. There's evidence of their jewelry as far as Mesopotamia and digs there. And they believe that there was actually a very active maritime trade network between these areas. There's jewelry discovered in these Indus Valley civilizations that were based on shells from the Arabian Peninsula.