Expert: Brad Swain - 3/30/2010

Question
Hello,

I have a 1993 U.S. $20.00 with a misprint on the back. It looks like a overprint where the front was also printed on the back. I'm looking to see about what the value may be. It is in perfect condition. It was in a fresh stack of $20.00 bills when it was found and was placed directly into a cover to keep it safe and protected.

Answer
Hi Ryan, If a sheet fails to enter the printing press, the inked plates will transfer their image to the impression cylinder. The next 6 or 7 sheets will receive the impression from the cylinder while the other side of the note is being printed. The result is an offset printing in reverse on the already printed side. Approximate value range: $200 - $300.
Error value depends on date, type and extent of the error as well as amount of folds or wear and collector demand.
You might try the following Paper Money Errors links:
http://coinsite.com/html/USCurrencyErrors.asp
http://www.usmintquarters.com/currencyerrors.htm
You may also find similar pieces on Ebay.com for comparison.
You might take it by a local coin shop for a first hand opinion: http://find.mapmuse.com/interest/coin_dealers .
Brad