
Based on the provided information, several special issues of the Kennedy half dollar are among the most valuable. The coins commanding the highest prices are primarily silver proof and special finish editions from recent decades.
According to the provided list, the 1998 S Silver Frosted Matte Finish Proof and the 2019 S Enhanced Reverse Proof are at the top, with estimated values of $100 or more. Another highly sought-after coin is the 2014 W Silver Reverse Proof, which is valued in the range of $60 to $70.
Other valuable Kennedy half dollars include several silver proofs from the 1990s. The 1995 S Silver Proof is estimated to be worth between $40 and $45, while the 1993 S and 1994 S Silver Proofs are valued at $35 to $40. The 1996 S and 1999 S Silver Proofs also carry notable value.
It is important to recognize that these values are for coins in MS60 condition or better. The actual worth of any specific coin is highly dependent on its grade and physical condition.


