Fractional currency
Fractional currency, also referred to as shinplasters, was introduced by the United States federal government following the outbreak of the Civil War. These low-denomination banknotes of the United States dollar were in use between August 21, 1862, and February 15, 1876, and issued in denominations of 3, 5, 10, 15, 25, and 50 cents across five issuing periods.