1964 Kennedy Half Dollar (90% Silver) Value: $10 to $25 or more, depending on condition. The silver content alone gives it a base value, but higher-grade coins can be worth more.
1964-D Kennedy Half Dollar Value: $10 to $30, with some uncirculated versions reaching over $50. This Denver-minted coin is rarer than the standard 1964.
1970-S Proof Kennedy Half Dollar (40% Silver) Value: Around $100 to $150 in proof condition. This is the last year the coin was struck with 40% silver, and only proof versions were made.
Bicentennial 1976 Kennedy Half Dollar Value: $3 to $10 for regular circulation coins. Proof versions in excellent condition can be worth $20 or more.
1982 and 1983 No Mint Mark Error Coins Value: These coins can be worth anywhere from $100 to $500, depending on the rarity and condition of the minting error.
Mint Errors (Double Strikes, Missing Mint Marks) Value: Error coins can be very valuable, often selling for hundreds or even thousands, depending on the rarity and the specific error.
Condition and Grading Value: Coins in Mint State (MS) or Proof (PR) conditions are worth more than circulated coins. Coins graded by professional services like PCGS or NGC can fetch higher prices.