"A" is the only possible series letter for a 1988 $20 bill. You may be referring to the Federal Reserve District letter. The series letter, if any, on US bills is next to the date.
In any case the bill is new enough that it's only worth face value if it's been in circulation. Uncirculated ones might be worth an extra dollar or two.
Unless it's uncirculated, any $20 bill printed since the 1970s is worth only face value.
It's still worth $20.
20 bucks
It's still worth exactly $20.
There are many varieties of US $20 bills that have brown seals, but only two types were printed in the 20th century - the 1929 series of National Currency Notes and the 1934 series of wartime currency printed for use in Hawaii.Please see the questionsWhat is the value of a 1934 US 20 dollar bill with HAWAII on it?What is the value of a 1929 US 20 dollar bill?
$20 Federal Reserve notes have been printed for over a century so more information is needed. Please check your bill again for the following:- Its date- What letter if any is next to the date- Its seal color if the bill is dated 1929, 1934 or any year before 1928Then look for questions like one of the following, depending on what you found."What is the value of a [date] US 20 dollar bill?""What is the value of a [date] [letter] US 20 dollar bill?""What is the value of a [date] US 20 dollar bill with a [color] seal?"and so on. Nearly every $20 bill printed since 1914 has been evaluated on this site.
Unless it is uncirculated, any $20 bill printed since the 1970s is worth only face value.
It's still worth $20.
The value is about 39$ if the bill is in good condition
Value of 1934c $20 bill
well see... there are numbers on a bill and in your case it is... $20
20 bucks
A 2001 20 dollar bill that has been printed wrong would be worth 40-50$
$20
Twenty dollars.
20 lol
$20
A date is needed. Please see the question "What is the value of a (date) US 20 dollar bill?" for more information.