Question regarding the 1968 Mint set: Is it true in the Philly sleeve there are two Lincoln cents- one Philly and one San Fran? I have a 68 Mint set and in the Philly Sleeve both Lincolns have an "S" mintmark? Is this an error and could it be of any value? Thanks!
It is not considered an error if the wrong coin is put in the set. It just means the employee had a hangover. Chris
Agreeed. There was a similar question about a newer (Statehood or ATB) quarter set. Same story, no premium. :-(
This is a relatively common error like two Denver quarters in a '69 set. Someone might have an interest in it but don't expect a large premium.