The designation refers to a United States silver coin struck between 1878 and 1904, and once more in 1921, that has been graded as Mint State 70 (MS70). This indicates the coin is in perfect condition, exhibiting no post-production imperfections at 5x magnification. As an example, a coin with exceptional luster, strike, and surface preservation could potentially achieve this top grade.
Such coins hold significant value in the numismatic market due to their pristine condition and rarity. Their historical significance as a symbol of American westward expansion and the silver mining era further enhances their collectibility. This combination of historical relevance and exceptional condition makes these examples highly sought after by collectors and investors alike.