2022 Burnished Silver Eagle First Day of Issue MS 70 Graded by NGC. This coin is composed of silver and contains 1 oz of precious metal content per unit. As a popular choice for investors and collectors, the 1 oz US Silver Eagle coin is a valuable addition to any portfolio or collection. The MS70 grade indicates a high level of quality and purity, making it a desirable coin for those seeking to invest in or collect silver bullion.