1. Condition: The overall condition of the note plays a significant role in determining its value. Notes that are in excellent condition with minimal folds, tears, or blemishes, and still retain their original crispness are generally more valuable.
2. Rarity: The 1914 $10 Federal Reserve note with a blue seal is considered relatively scarce compared to other notes of that era. This scarcity can contribute to its value, especially if it's one of the lower-numbered notes or has unique features that distinguish it from others.
3. Grade: Numismatic grading services, such as the Professional Coin Grading Service (PCGS) or Numismatic Guaranty Corporation (NGC), often grade these notes based on a scale that assesses factors like wear, staining, and overall preservation. Higher grades, such as MS (Mint State) or AU (About Uncirculated), typically command higher values.
4. Signatures: The signatures on the note, particularly those of the Treasurer and the Secretary, can also impact its value. Certain signatures or combinations of signatures can be more sought after by collectors, influencing the note's price.
5. Series and District: The series and Federal Reserve district indicated on the note can influence its value. Some series or districts may be scarcer than others, making certain notes more desirable to collectors.
6. Serial Numbers: Unique or interesting serial numbers, such as low numbers, consecutive series, or "repeats," can add to the note's value for certain collectors.
Given the scarcity and potential value of this note, it's recommended to consult with reputable appraisers or dealers specializing in currency to obtain a reliable estimate of its worth.