What we now refer to as Old Gold and Old Silver replaced the weenie golds and standardized the size and color of coins. Made of the same thin tin, the benfit was that you could fit lots of it in you pouches, the detriment was the you were libel to slice your cuticles when reaching for it. Very quickly the market became flooded with these coins because there was no law (OOC: rule) saying that people couldn't make their own. These coins hold a current value of one silver if you can find someone who will take them.
During this time the only real special coins were Mithril. The smaller variety was the orginal and the larger came later, the smaller was reputed to be worth 25 gold and the larger was 50.
The one other item that was rare and original during this time is the Amazon Cod Piece. It seemed to be made of some very heavy metal and had a fish shape on one side. My understanding is that I own the only surving instance of this coin. Queen Meg can testify to its origins as she was somewhat privy to the creation of it. It's value is priceless.
During the early times, coin was hard to come by and most trade was done with bobbles. Gems, glass beads, jewelry and other non-coin valuables were all considered Bobbles.
The flower shaped coin is called a Kestral Coin (or at least that's the slang) and Kestral used to back them with his potions. They are at least 5 years old, not exactly a valehave era bobble but a modern day bobble nontheless.
And that was the entire scope of our economy.