The listing, Lincoln head penny with Kennedy stamped on it! has ended.
A trippy old Advertising ploy featuring "uncirculated Lincoln head penny with Kennedy profile stamped on it. Looked info up online: This is a novelty item, made outside the mint by stamping Kennedy's head onto a normal cent, generally used for advertising purposes, being attached to a card listing the "Astonishing Coincidences" between the two presidents, along with an advertisement at the bottom of the card. Without the card, these are worth less than a dollar -- attached to the card, these are worth $2 to $3.