Pirate Treasure (Copper) A commercial geocoin issue that finds its way into my collection by virtue of the fact that a) it is mostly metal, b) it looks good, and c) it has a skulls on it! (And a cool pirate ship, too.) Size: 44 mm | Weight: 44 g on Tuesday, 02 October 2007. Posted in GEOCOINS, Mostly Metal, Skulls < Prev Next > Related Geocoins Pirate Treasure Map (Gold)Pirate Treasure Map (Silver)Pirate Treasure (Silver)Pirate Treasure LE