Gold
Dragons use gold for their currency. The size of the Gold coin means the greater the value. From 100-1, the gold pieces are mixed with another metal so they dont have to use so much of the substance. This means the gold is on the outside, while the inside is another precious metal.
Gold Pound
A gold pound is the biggest coin, and worth the most. It is the size of a small human palm, and is made of a heavy and sturdy metal on the inside.
Gold Shilling
A gold shilling is the second biggest coin, and is between a Pound and a Fleck. It is the size of a classic dollar coin, and made of a lighter, but still tough, metal inside.
Gold Fleck
A gold fleck is the smallest coin and worth the least. Its often used for small change or tiny items. It is the size of a cent, and made of a lightweight metal under the gold plating.