What is the value of a 1928 series 20 dollar bill from Federal reserve bank of San Francisco?

The value of a 1928 series $20 bill from the Federal Reserve Bank of San Francisco varies based on its condition, rarity, and market demand. Generally, bills in good condition can range from $30 to over $250, while those in uncirculated condition may fetch significantly higher prices. Collectors often seek out specific serial numbers or unique features, which can further influence the value. For an accurate appraisal, consulting a currency expert or recent auction results is recommended.