Bullion Coins are the coins struck from precious metal such as Gold, Platinum, Silver, etc. These Coins are very popular amongst the investors who like to have diversification in their investment portfolio. Proofs, Uncirculated and special issues are the other versions of these special coins.  

American Eagle Silver Bullion Coin is one of the most regarded coins amongst the Bullion Coins. It's Purity, Design and US Government backing has made it more remarkable. 99.9% of the coin consist of pure silver and balance by copper. 
This One Troy ounce pure silver coin was first minted in 1986 by the United States Mint. From its inception it could capture high level of attention amongst the potential investors.   It is regarded as one of the most beautiful coin ever minted. The design of the Coin is based on A.A.Weinman's art of “walking Liberty”. The word “Liberty “and phrase “In god we Trust” can be seen in the obverse of the coin. That has made the coin Iconic and beloved amongst the public.  

Even though the Silver Bullion Coin has a surface value of 1 dollar it has more inherent value than that, since the market value of Silver is continuously increasing. The initial stock of this Silver Bullion Coin was sold out immediately due to the remarkable demand.  Since then, almost every auction of Silver bullion coins was a hit. Public cannot purchase the coin directly from The United States Mint. Instead they have to buy it from secondary market. There is a network of Authorized dealers of the Coins. They directly purchased the coin in bulk from United States mint and distribute to secondary market with premiums. 

In the recent past as a result of global recession the demand for the American eagle Silver Bullion coin was historically high. Investment in Valuable metals such as Gold, silver, platinum regarded as one of the safest way of securing the investments in the global recession. This unprecedented demand affected the availability of the coin and most importantly increased the price of the Coin as well. That resulted to suspense the sales to the Authorized dealers by the United States Mint. 
Finally, nearly 2 decades of its inception the American eagle silver bullion coin has acquired the title of one of the best investment coin in the world.