Ten-dollar bills from 1950 that are in mint condition and have been well-preserved are valued at $19.08, as of August 2014. The value of a 1950 ten-dollar bill depends on the series it belongs to and its condition. There are three series of ten-dollar bills; A, B, and C.
Bills in all three series are valued depending on their condition. Bills that have severe wear and tear and multiple folds are valued at face value: ten dollars. The possible value of this bill comes from the inverted flag on the back of the bill. If viewed carefully, the flag on top of the capitol building is upside down; only a few were printed before the error was corrected.