However, there are some rare 1943 copper pennies that were minted by mistake.
If you have confirmed it actually copper and not steel, it could be worth a significant amount of money, anywhere between $100,000 and $1 million or even more, depending on its condition and provenance.
Here's how you can further verify the authenticity of your 1943 copper penny:
1. Examine the color: A genuine 1943 copper penny should have a reddish-brown color, while a steel penny will appear silvery-gray.
2. Check the composition: You can use a magnet to test the composition of the penny. A copper penny will not be attracted to a magnet, while a steel penny will be.
3. Look for the mint mark: Genuine 1943 copper pennies will have a mint mark either above the date on the obverse (front) of the coin, which may be "S" (for the San Francisco Mint) or "D" (for the Denver Mint), or to the left of the date on the reverse (back) of the coin, which will be a "P" (for the Philadelphia Mint).
4. Verify the weight: A genuine 1943 copper penny should weigh 3.11 grams (0.11 ounces).
If you have confirmed that your penny is indeed made of copper and has all the other characteristics of a genuine 1943 copper penny, it is highly recommended to have it independently鑑定and to get a professional appraisal to determine its exact value.