History of South America

What is the value of a 1914 US 20 dollar silver certificate?

There were no $20 silver certificates issued in 1914. Silver certificates were issued in denominations of $1, $2, $5, $10, $20, $50, $100, $500, and $1,000 from 1878 to 1964. They were called silver certificates because they could be redeemed for silver.