You need to be more descriptive of what the error is. There are multiple paper money errors with some being worth no more than normal notes (minor cutting errors) to some being worth thousands of dollars (double denomination mules), without knowing what error you think you have, it is impossible to accurately value your coin.
The circulated bill is only worth a bit more than face value. Check eBay and some of the big coin and currency dealers that have large e-business operations to see what they are getting for your note. Prices are volatile, and a lot will depend on the condition (as well as the demand).
You could probably get one dollar for it.
A $10 bill with a star next to the serial number is considered a replacement note and is worth face value, which is $10. The star represents that the original note was damaged during the printing process and this replacement note was issued in its place.
A $50.00 star note is worth face value ($50.00) unless it has unique attributes like being in uncirculated condition or having a rare serial number that may increase its value to collectors. Its worth would depend on these factors.
If the Bureau of Printing and Engraving make an error in the printing of a banknote, the note has to be replaced. Any replacement notes are marked with a small star at the end of the serial number. Because these are reasonably rare, a perfect mint condition uncirculated 1999 $20 note would be worth about $60 instead of $30 for a standard note without the star. A worn, creased note that has been used is only worth its face value of $20.
A whole note is worth 4 beats, a half note is worth 2 beats, a quarter note is worth 1 beat, an eighth note is worth 1/2 a beat, a sixteenth note is worth 1/4 of a beat, a dotted half note is worth 3 beats, and a dotted quarter note is worth 1 and a 1/2 beats.
500
For the average bill, around $110-$120. But if it is in crisp condition it could be more around $150 on a good day.
its worth 2 beats
The 1974 US $20 star note is valued in price close to $30 each. The amount will vary depending upon the condition the bill is in.
R2000.00
how much is old $1 note worth serial number K11 111111
Its a "G Note" not worth a fortune, but see http://www.coincraft.com/catalog/displayitem.asp?ID=BEB3945&mid=9&cID=181
500 euro
It's still worth $50.
how much is old $1 note worth serial number K11 111111
99% of the time a 1950 $10 bill is just worth $10. If it is an error, star note, or in perfect condition it could be worth more.