We are talking about pennies, right? 
Because I can't think of any US pennies (large cents-Lincolns) that carry a P Mint mark.
A no mint mark penny has always been understood to be from the Philadelphia Mint.
Because I can't think of any US pennies (large cents-Lincolns) that carry a P Mint mark.
A no mint mark penny has always been understood to be from the Philadelphia Mint.




















