Hello,
Welcome to the forum.
The notes value that you are asking about will depend on condition. $1 minimum for poor condition up to $70 each for new or mint condition (no creases,folds and stains. corners very sharp ect..) These are book value. Very rare that notes sell for book value. Usually sell below book value.
But to tell you the truth, they are not in demand and are easily found. They will be hard, to find a buyer even if they are in mint condition.
My recommendation is keep if they have sentimental value, give as gifts (Kids love them) or return to the bank for face value.
Good luck.
