What would the value of 1971 D penny with Lincoln's head on both sides be worth?

Answer 1

A 1971 D penny with Lincoln's head on both sides is considered a mint error, specifically a type of coin known as a "double die" or "wrong planchet" error. Such coins can be of significant interest to collectors, and their value can vary widely based on condition and demand. While most common errors might be worth a few dollars, unique or well-preserved examples can fetch much higher prices, potentially reaching hundreds or even thousands of dollars at auction. It's advisable to have the coin appraised by a professional for an accurate valuation.