1: Discover the most valuable Kennedy half dollars

2: Check for coins with a clear "S" or "D" mintmark

3: Look for coins with full bell lines on the reverse

4: Inspect for proof-like coins with sharp strikes

5: Verify the date and mintmark for rare varieties

6: Consider the coin's overall condition and grade

7: Consult a professional for authentication and appraisal

8: Join online coin collecting communities for insights

9: Invest in a quality coin holder for storage and protection