1: Intro - "Discover the value of a rare 1851 dollar coin in today's market."

2: History - "Learn about the history and significance of the 1851 dollar coin."

3: Condition - "Factors that determine the value of a 1851 dollar coin, including its condition."

4: Rarity - "Uncover the rarity of the 1851 dollar coin and how it affects its worth."

5: Pricing - "Find out the current market prices for a 1851 dollar coin in different conditions."

6: Collectibility - "Explore why the 1851 dollar coin is highly sought after by collectors."

7: Auctions - "Discover where and how to buy or sell a 1851 dollar coin at auctions."

8: Authentication - "Learn about the importance of authenticating a 1851 dollar coin before selling or buying."

9: Conclusion - "Summarize the key points about the value and worth of a 1851 dollar coin."