2006 American Eagle 20th Anniversary Silver 3-Coin Set with US Mint Box & COA. The 3-coin American Silver Eagle 20th Anniversary set from the US Mint in the original mint packaging with COA.The item "2006 American Eagle 20th Anniversary Silver 3-Coin Set with US Mint Box & COA" is in sale since Saturday, July 27, 2019. This item is in the category "Coins & Paper Money\Coins\ US\Commemorative\Modern Silver/Clad (1982-Now)". The seller is "sa-lonestar" and is located in San Antonio, Texas. This item can be shipped to United States.