With only a little over four million Franklin half dollars struck at the San Fransisco Mint in 1953, these are already rare coins. They're even more rare when all the lines on the ...

Those coins permanently replaced the Benjamin Franklin 50-cent pieces, thus limiting the supply of the Franklin half dollars and contributing to current values that run into six figures.

Although the face value of a Ben Franklin half dollar is 50 cents, some can be worth so much more. These are some of the highest sales prices recorded for this coin in recent years.