What are the years Lincoln memorial penny was printed with p s and d stamp?

* 1959

* 1960

* 1961

* 1962

* 1963

* 1964

* 1965

* 1966

* 1967

* 1968

* 1969

Lincoln Memorial Pennies with S mint mark:

* 1959

* 1960

* 1961

* 1962

* 1963

* 1964

* 1965

* 1966

* 1967

* 1968

* 1969

Lincoln Memorial Pennies with D mint mark:

* 1968 (the only year the Lincoln Memorial penny was produced at the Denver mint)