The 1930D penny is a common date and variety of the Lincoln cent series, and is generally worth around $0.05-$0.10 in circulated condition. However, certain well-preserved or error coins can be worth significantly more. For example, a 1930D penny in uncirculated condition can be worth up to $10 or more, depending on the specific grade and quality of the coin. Additionally, rare error coins, such as those with mint errors or doubled dies, can be worth hundreds or even thousands of dollars. It's always a good idea to have your coin appraised by a professional numismatist to determine its exact value.