Currency in the Northern Province

There are many types of hard currency in the northern province.  The most common is the Kings Coin, from the Kingdom of King John. 

For use in the game, The PP, GP, EP, SP and CP System is considered a guideline for base valuation, but those coins do not exist in the game world.  they are only necessary as the Game System Reference Materials reference these Currency Valuations.  In the game world however, the characters are interacting with varied coins from many kingdoms and periods.

They might find a small bag with mixed coins from four different Kingdoms, or a buried Dwarven Coin Hoard that weighs close to 800 pounds of mostly rusted Iron chits of little to no value in the world of men but for making horseshoes and nails.