After which year is a penny valuable?

Answer 1

Unlike some items that become valuable when they reach a certain age, a coin's value depends on its rarity. Many old coins that were made in large numbers are only worth a small amount, while newer ones can be quite expensive.

To give just a simple example, many Indian head cents from the 1880s and 1890s were struck by the millions and sell for a few dollars in average condition, while a newer cent with a small mintage such as a 1909-S VDB or 1914-D Lincoln cent can sell for hundreds or even thousands of dollars.