What is the value of a misaligned 1950 us ten dollar bill series g66359101f?

Answer 1

Alignment errors on U.S. currency vary significantly in value. If the image is still all within the borders of the paper it's considered a minor error and is generally worth very little above face value if anything. However, if the printing is far enough off that part of the image of another bill is visible, it's much rarer and could sell for $200 to $600 depending on the extent of misalignment. You would have to take the bill to a couple of dealers who specialize in error currency to get competing estimates.

Also, as you've seen in many others' postings, a bill's serial number almost never affects its value. A bill's date, seal color, condition, and series letter are the important factors.