matmaisan says:
(referring to the "dragons")In fiction, is this Keoish coinage? What empire minted the coin?
Yes, they are coins that stem from the Keoghlish Empire (I'm using the alternative spelling to indicate antiquity); the dragon coins are a few centuries old. These may be the first time any of you has beheld one outside of a museum/display in a government building.
You wouldn't be far off to think of them as $1,000 bills: they're worth 1000 of the common currency (the copper lion, or "cub") and they're still legal tender, but they haven't been minted in your lifetime, and most people have never seen one because they're so rare.