California Fractional Gold coins were issued in the mid-19th century, specifically around 1854, during a period of gold rush that led to a significant demand for smaller currency denominations. These coins were minted in response to the need for convenient, smaller denominations for everyday transactions in California. The "Fifty Cents" variety represents half dollar denominations, typically made using gold, and served as a local alternative to U.S. coinage. They are highly collectible due to their historical significance, rarity, and the fact that they were often produced by private mints rather than the official U.S. Mint.