The mysterious 1860-O Over Horizontal O: One of the most enigmatic variations, this coin features an overstrike of an "O" mintmark horizontally over another "O" mintmark.
The Double Dime Error: In 1860, an error occurred during the minting process, resulting in the production of some Liberty Seated Dimes with a doubled "DIME" inscription.
The Unusual Weight Reduction: In 1853, the weight of the Liberty Seated Dime was reduced from 2.67 grams to 2.49 grams due to rising silver prices.