What is the value of a 1950 US 50 dollar bill?

Answer 1

Look next to the date to see if there's a small letter. That's the series letter and can affect the bill's value. Auction prices as of 05/2010:

No letter, or A-D:

Circulated condition - Face value to $140 depending on how worn the bill is

Uncirculated - $175 or more.

"E"

Circulated - $75-100 depending on how worn the bill is

Uncirculated - $500 or more

It depends on the bill's condition and series. The series is a letter that may or may not appear next to the date 1950. The printed year is often kept the same for a particular design regardless of the actual year of issue, while the series letter is changed following the appointment of a new Treasurer (or much less often, Treasury Secretary). $50 notes for 1950 were issued in 6 series - no letter, and 1950A through 1950E. E-series notes can be worth $25 to $50 above face value if circulated, more if crisp uncirculated. The other 5 series are worth less, anywhere from face value to $25 above; again, more if crisp uncirculated.

The demand for these is much less than the supply. Unless yours is an absolute gem crisp uncirculated note, you're not going to get any premium for it. If it's a gem, you might get $70-$80 if you can find an interested buyer.