Listed as one of the "Top 50 most popular modern coins", these 1999 $10 W mint American Gold Eagle coins were struck in error by the mint during the Y2K scare. At that time, only proof gold eagles were supposed to bear the "W" mint mark, but due to the high demand at the time, we suspect a proof die was put into service by mistake. Only 6, 000 $10 pieces were minted - this is one of the rarest coins in U.S. Mint history by mintage number. IPM has been recommending coins of this caliber for years. The performance and rarity of this coin makes it not only an incredible gift, but also an heirloom that can be passed down for generations. In mint state PCGS 69 grade, there are only 1305 of these coins on the planet. Past value performance has been strong, seeing this coin go up in value despite the decline in gold spot. Now offered exclusively for a limited time! In 1999, the U.S. Mint made a drastic mistake by producing the first Mint State $5 and $10 Gold Eagles bearing a W mint mark. In 1999, only Proof Gold Eagles were intended to bear the W mint mark. This mistake has left us with a lot of puzzling unanswered questions about the production and existence of the 1999-W $5 and $10 Mint State coins. The year turned out to be a very busy year for the U.S. Mint. It received a tremendous and unexpected demand for American Gold Eagles. The huge demand for 1999 Gold Eagles was more than likely created by collectors and investors who were worried about the upcoming Millennium Year and some of the potential issues that could have been created by Y2K. Many believe the Mint was in such a rush to produce 1999 Gold Eagles, that in an attempt to meet the publics demand, it inadvertently mixed a proof die into service. Another possible theory is that the Mint may have intentionally put a proof die into service in order to meet the publics demand. Whatever the case may be, we can be certain the coins should not exist today. Call your IPM Account Executive for more exciting details.