Liberty Seated Half Dimes were produced between the years 1837 to 1873 inclusive with mintages varying widely. During the course of the series, the obverse and reverse designs underwent a series of changes, which create numerous subtypes throughout the series. The denomination also underwent a change in weight in 1853. This year and the following, the denomination would experience its highest production levels.
The lowest mintage coin came in 1867 when just 8,000 coins were produced. Another notable low mintage issue is the 1867 Philadelphia issue which saw 27,000 pieces struck. This issue is considered the key date of the series due to a low survival rate, which left very few examples for collectors. The highest mintage of more than 13 million pieces occurred in 1853 coinciding with a change in the standard weight.
A unique coin exists which is not included in the mintage figures below. The 1870-S Half Dime has one known example, despite the fact that no half dimes were reported struck at the San Francisco Mint during the year.
