Redemption value of Hbonds

I have a $1,000 Series H U.S. Savings Bond issued in September 1955. How do I find out the value? All Savings Bond Calculators that I have tried do not have Series H as a selection. Tom's response Series H and HHbonds are worth their face value when redeemed, so your bond is worth $1,000. It stopped earning interest years and years ago - you should cash it in.