But what do I know.... it is a neat bill but if the conditon was better.

http://www.coinsite.com/html/uscurrencyerrors.asp

"Gutter folds are one of the most common currency manufacturing error. It is caused by a fold in the paper at the time of printing. When the folded part is opened there is a blank streak or line where the paper was folded. Though simple gutter folds, similar to this 1950A Federal Reserve note are common, large gutter folds can be quite spectacular. Approximate value range for this simple gutter fold: $30 - $65"