Most likely the image you see on your penny is John F. Kennedy.
These Lincoln/Kennedy novelty items were popular advertising items back in the 70's.
This is not something done at the Mint. Somebody took a stamp and manually counterstamped Kennedy's image onto the penny after it left the mint.
These novelty items generally sell for about a dollar.
Dan
Harry S. Truman had nothing to do with any double eagle coin, but Theodore Roosevelt did. Post new question.
If its an authentic signature and it checks out by an authority on historical signatures then yes, it most definitely increases the value.
what is the value of a 1903 indianhead penny
what is the value of 1945d penny
what is the value of a 1912 lincoln wheat penny
This is not enough information to give an accurate value amount. Need to know 'Type' of penny, 'Date' of penny and 'condition' of penny.
The face value of any coin is what is inscribed on the face of it. The face value of a 1 Penny coin is 1 Penny.
The value of an orange one half penny varies by the year of the penny and the condition.
It is worth a penny
...If you can read the date on the penny, it is not an unstamped penny.
A common penny has a value of 1 penny only
The value of the 1910 1955 penny stamp value is one pound.