United States Dollar, Physical Models Released for circulation: Original Gold Dollar: 1/20.67 Troy Oz of Fine Gold. Minted in denominations of $1, $2.50, $5, $10, & $20. Source of value: Gold composition. Dates: 1795 - 1933 (de jure end of circulation). Issuing entity: The US Mint, Department of the Treasury. Current status: Discontinued. Original Silver Dollar: 0.77344 Troy Oz of Fine Silver (16 to 1 ratio with Gold). Source of value: $1 face value tied to 1/20.67 Troy Oz of Gold by fiat until 1933, and 1/35th Troy Oz of Gold by fiat until 1971, underlying supportive value from Silver composition. Dates: 1794 - 1935 (de jure end of production, de facto end of circulation). Issuing entity: The US Mint, Department of the Treasury. Current status: Discontinued. 90% Silver Fractional Dollar: Mostly made with 0.72 Troy Oz of Fine Silver per $1 face value. Source of value: $1 face value tied to 1/20.67 Troy Oz of Gold by fiat until 1933, and 1/35th Troy Oz of Gold by fiat until 1971, underlying supportive value from Silver composition. Dates: Minted for circulation: 1796 - 1964. Minted for collectors of Silver Proof sets: 1992 - 2018. Issuing entity: The US Mint, Department of the Treasury. Current status: Discontinued. 40% Silver Half Dollar: Mostly made with 0.32 Troy Oz of Fine Silver per $1 face value. Source of value: $1 face value tied to 1/35th Troy Oz of Gold by fiat until 1971, underlying supportive value from Silver composition. Dates: Minted for circulation: 1965 - 1970. Issuing entity: The US Mint, Department of the Treasury. Current status: Discontinued. Federal Reserve Note: Cotton linen blend. Source of value: $1 face value tied to 1/20.67 Troy Oz of Gold by fiat until 1933, and 1/35th Troy Oz of Gold by fiat until 1971, 1972 to present fiat value comes from face only (backed by debt). Dates: 1913 - Present. Issuing entity: Federal Reserve Banks (former) and the Bureau of Engraving and Printing (current). Current status: Circulating. Copper/nickel/zinc fractional and whole dollars: No standard of composition. Source of value: $1 face value tied to 1/20.67 Troy Oz of Gold by fiat until 1933, and 1/35th Troy Oz of Gold by fiat until 1971, 1972 to present fiat value comes from face only (backed by debt). Dates: Penny: 1793 - 2025 (Discontinued). Nickel: 1866 - Present. Dime: 1965 - Present. Quarter: 1965 - Present. Half Dollar: 1971 - Present. One Dollar: 1971 - Present. Issuing entity: The US Mint, Department of the Treasury. Current status: Circulating. As of 2026 with Gold around $5000/Oz, the modern paper and copper dollars have 1/242nd of their 1792 - 1933 value and 1/143rd of their 1934 - 1971 value and falling. Going from 0.0484 Troy Oz of Gold per $1 in 1933, to 0.0002 Troy Oz of Gold today. A loss of 99.6% in less than 100 years.