1986-2006 American Silver Eagle (21) Coin Set Graded MS69 in NGC Slabs - This incredible NGC American Silver Eagle set contains (21) coins, and marks the 20th anniversary of the American Silver Eagle bullion coin program which was first established in 1986. The set contains (21) individually graded coins, which have been graded by NGC as a near perfect MS 69. The set contains 1986-2006 coins, all of which are struck from one ounce of .999 fine silver.