What is the value of a Lost Kennedy half dollar?

Answer 1

No Kennedy halves have ever been "lost". They're the figment of a advertising agent's imagination, trying to hype private sales. This is an attempt to play off the fact that in some recent years halves have only been struck for purchase by collectors, so they're "lost" to circulation.

If you have a half dated 2002 or later in its original packaging from the Mint, it might be worth a dollar or so at retail. A dealer is unlikely to pay much more than face value though.

Answer 2

It depends very much on the coin's date. Please check the questions "What is the value of a <date> Kennedy half dollar?".

E.g. if your coin is from 1969, look for "What is the value of a 1969 Kennedy half dollar?".