This particular coin is a United States silver dollar that was minted in 1890. It belongs to a series of dollars designed by George T. Morgan and minted from 1878 to 1904, and again in 1921. These coins contain approximately 90% silver and 10% copper, contributing to their intrinsic value. As an example, a circulated specimen from this year could be worth considerably more than its face value due to its silver content, condition, and rarity.
The historical significance of this coin stems from its role in the economic and political landscape of late 19th-century America. It represents the resurgence of silver coinage after the Coinage Act of 1873 effectively demonetized silver. Furthermore, its production coincided with the expansion of the American West and the debates surrounding bimetallism. Collectors value it for its historical context, silver content, and the aesthetic appeal of its design. Appreciation in value depends on its mint mark (or lack thereof), condition, and the demand within the numismatic market.