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$10 in uncirculated condition. $2 if used.
A twenty dollar bill with a star on it can be worth different amounts depending on the date. A 1914 twenty dollar bill with a star on it is worth 1000 dollars.
One dollar.
They are more valuable. it means they were printed to replace a bill that was damaged during the printing process. Only 11% of money are 'star notes.' The value of a star note can vary a lot, or only slightly, from the value of a similar standard note. It depends on the bill's date and condition.
The star signifies that it is a replacement bill for one that was destroyed earlier. Any denomination bill can have a star in its serial number. These bills are rarer than non-star bills and can be of value to a collector (greater than face value). But like most collectibles condition is everything for coin and paper money collectors. To get top value for the bill it must be in crisp, torn, folded condition or like new. If the bill is circulated with tares, folds, dirt, etc... the value goes down significantly and may only be worth face value as a normal bill.
Value of 1963 one dollar star note
What is a 1976 2 dollar bill with a star worth
It means that the original bill was destroyed so they made another one and put a star beside it.
"Star notes" can be worth a small premium over a standard bill's value. Depending on condition it might retail for $55 to $60.
The value of a star note is usually somewhat higher than that of a "regular" bill, but the extra value depends very much on the bill's date and condition. If it's a modern (1976 or later) $2 bill, regular-issue ones are only worth face value so a circulated star (replacement) note will only be worth 50¢ to a dollar more. A nice uncirculated one could bring around $4. If the bill is older please post a new question with its date and what letter if any is after the date. You don't need to copy the entire serial number.
$10 in uncirculated condition. $2 if used.
It's still worth $100.
Star notes are only printed to replace bills damaged during production, so most bills of any denomination won't have a star. If a bill does have one, it replaces the letter at the end of the bill's serial number.
A twenty dollar bill with a star on it can be worth different amounts depending on the date. A 1914 twenty dollar bill with a star on it is worth 1000 dollars.
In decent condition, it has a collector value of a few dollars.
Please check your bill's date again. he US didn't print any bills of any denomination dated 1978. The nearest date for $2 bills is 1976; those bills are only worth face value unless they are uncirculated. Correction: Yes they did make a 1978 two dollar bill. I am looking at one and holding it in my hand.
Star notes generally have some additional value to collectors beyond face value. The amount is determined by the series (date) and condition.