I want to know the answer to the following question:
What was the maximum value a gold coin used to be able to have?
All the background I'm provided with is that "In the past, "paper money" was occasionally issued in denominations less than a dollar (fractional currency) and gold coins were issued for circulation up to the value of $20 (known as the "double eagle", discontinued in the 1930s).". Is that enough to answer the question?