Currency of the US
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Dollar -
Greenback
1862 AD: Portrait of Treasury Secretary Salmon P. Chase at left within an oval frame, paired with ornate typography, a red Treasury seal, and intricate green anti-counterfeiting lathe work. Issued under the Legal Tender Act of July 11, 1862, this $1 Legal Tender Note (United States Note) represents the quintessential "greenback" created to fund Union operations during the American Civil War. This fiat note helped revolutionize finance by establishing a federally issued paper currency that functioned as legal tender without immediate redemption in gold or silver.
2
Dollar -
Morgan
1878–1921 AD: Designed by Assistant Engraver George T. Morgan and minted primarily following the Bland-Allison Act of 1878, this iconic silver coin required the U.S. Treasury to purchase and strike millions of ounces of Western silver into circulating currency each month. Struck across multiple mints—including Philadelphia, San Francisco, New Orleans, Carson City, and Denver—the Morgan Silver Dollar became a symbol of late 19th-century Westward expansion, industrial growth, and political debates over the bimetallic silver standard.
1
Dollar -
Flowing Hair Type
1794–1795 AD: Designed by Chief Engraver Robert Scot and struck at the fledgling Philadelphia Mint, the Flowing Hair dollar represents the very first silver dollar coin issued by the United States federal government. Its physical dimensions, gross weight of 416 grains, and high silver purity were explicitly modeled after the Spanish colonial 8 Reales ("piece of eight") to ensure immediate acceptance in domestic and international commerce.