1972 half dollars derive value from strike type, error coins, die varieties, and a little from grading.
Factors such as grading, mint marks at the higher grades, error coins, and die varieties add value to a 1943 half dollar.
Several elements make 1968 Kennedy half dollars valuable. These include grading, strike type (which also ties into minting location), error coins, and die varieties.
Grading, rarity, strike types, errors, and composition can all add to the value of a 1776 to 1976 Kennedy half dollar.
Several factors add to a 1942 Walking Liberty half dollar’s value. These include grading, rarity, minting location, strike type, and whether or not it’s an error coin or die variety.
Quite a few factors make 1964 Kennedy half dollars valuable. These include their grading, rarity of some versions, minting location, strike type, design variation for proof coins, and whether or not the coin is an error coin or die variety.
Several factors make 1971 half dollars valuable. These include their grading, strike type, and whether or not they’re error coins or die varieties.