1976, Kennedy Bicentennial Half Dollar; with no mint mark, copper-nickel clad, uncirculated-$1.25 with D mint mark, copper-nickel clad, uncirculated-$1.25 with S mint mark, copper-nickel clad, proof-$1.75 with S mint mark, silver clad, uncirculated-$4.00, proof-$5.00
There were so many hundreds of millions of these minted that if your coin has been in circulation, it has no added value and probably never will.
