Coin, CAROL IIII.D.C. HIS P.ET IND.R 1792 on one side with man bust, other side IN.UTRO.FELIX. AUSPICE.DEO?

Found in N.J shore, CAROL IIII.D.C. HIS P.ET IND.R 1792 on side with man bust, other side IN.UTRO.FELIX. AUSPICE.DEO. It is dark colored, in great shape. Is this original or a copy, and what is it worth.