Condition: The overall condition of the bill is crucial in determining its value. Factors such as folds, tears, stains, and overall wear and tear can significantly impact its worth. Bills in uncirculated or near-uncirculated condition are more valuable than those that are heavily circulated.
Series and Printing Date: The series and printing date of the bill can influence its value. Certain series and printing dates may be rarer and more sought after by collectors. For example, the 1928 $5.00 bill with the "B" printing date is considered to be more common than those with the "A" printing date, which can affect the value.
Rarity: The scarcity or rarity of a particular bill can significantly affect its value. Certain error notes, misprints, or low print runs can make a bill more valuable and desirable to collectors. It's important to note that rarity is not always easy to determine and may require research and expertise in numismatics.
Grade: Third-party grading services, such as the Professional Coin Grading Service (PCGS) or Numismatic Guaranty Corporation (NGC), can grade the condition of a bill. Graded bills often command a higher value due to their authenticity, as well as the expertise and consistency in determining their condition.
Based on these factors, the value of a 1928 $5.00 "Lincoln" bill can range from a few dollars to several hundred dollars or even more. It's recommended to consult with a professional numismatist or refer to reputable coin price guides to get an accurate valuation of your specific bill, considering its condition, rarity, and other relevant factors.