As a boy I remember owning a few of the half dollars with Lincoln stamped on them. My dad bought them.
They were a novelty in 1964'ish. Back when they were saying things like
"Lincon's press secretry was named Kennedy. Kennedy's pres secretary was named LIncoln. LIncoln was shot in t a theatre and he ran to a warehouse. Kennecdy was shot from a warehouse (NOt ture byt hte way. It was a library) and he ran to a theatre. Kennedy was born in 18(whatever) and elected in 1860, and Kennedy was born in 19 (Same year) and elected in 1960." All sotrts of things like that. And the coin came out to sell with this long list of parralel items between the two.
LIke others, mine is long gone. I'd LOVE to find one, for memory sake, but haven't seen one as of yet.