
What is the world's rarest gold coin?
Could you please elaborate on the matter of the world's rarest gold coin? I'm intrigued to know what makes it so scarce and what unique characteristics it possesses. Additionally, I'm curious about its historical significance, if any, and whether it holds any particular value beyond its rarity. Could you also mention if there are any known instances of this coin being sold or auctioned, and if so, for what price?
