1. Good condition: An 1856 US penny in good condition, with visible wear but still retaining most of its design details, can be worth around $10 to $20.
2. Fine condition: A penny in fine condition, showing moderate wear but still with some detail, may be valued between $20 and $30.
3. Very fine condition: Pennies in very fine condition, with minimal wear and clear design elements, can be worth around $30 to $50.
4. Extremely fine condition: An extremely fine 1856 US penny, with sharp details, virtually no wear, and almost original mint luster, can be valued anywhere from $50 to $100 or even higher.
5. Uncirculated condition: Uncirculated pennies, which show no signs of wear and appear as if they were just minted, can be worth significantly more. Depending on the specific grade and desirability, an uncirculated 1856 US penny could command prices ranging from $100 to several hundred dollars.
However, it's essential to note that the actual value of an 1856 US penny can vary greatly based on factors such as rarity, mint errors, and overall market demand. If you have an 1856 US penny and want to determine its precise value, it's best to get it professionally appraised by a reputable coin expert or dealer.