Coin Condition: Higher grades like Mint State (MS) or Extremely Fine (XF) fetch better prices. Aim for top condition.
Mint Mark: Check the mint mark (e.g., "D" for Denver, "S" for San Francisco) as it affects value.
Rare Varieties: Research for rare varieties or errors that can increase value.
Consult Price Guides: Use reputable coin price guides for value estimates.
Professional Grading: Consider professional grading for authenticity and higher prices.
Market Trends: Stay updated on market trends and collector demand.
Authentication: Ensure authenticity, especially for valuable varieties.