How much is a twenty from 1864 serial number 46410 worth?

The value of a 1864 twenty-dollar bill with serial number 46410 can vary significantly based on its condition and any unique characteristics. Generally, bills from that era can range from a few hundred to several thousand dollars. Factors like wear, folds, and overall appearance play a crucial role in determining its market value. For an accurate appraisal, it's best to consult a professional currency dealer or numismatist.