You have the 1¢ Franklin from the years 1923-31. It is a very common stamp and with very rare exceptions is worth less than a dollar whether used or unused. If, perchance, you have one of the rare exceptions the stamp will be accompanied with a certificate stating its identity. The chances of finding one of the rare examples without a certificate are about the same as being struck by lightning...twice. Because of this I am not subjecting you to the torture of identifying varities that have subtle difference. Generaly you will find the 1¢ by clicking here or clicking here. However, there are some easily identifiable varieties;

The stamp has the letters Kans. on it

The value of this stamp (#658) can be found by clicking here.

The stamp has the letters Nebr. on it

The value of this stamp (#669) can be found by clicking here.

The stamp has no perforations

The value of this stamp (#575) can be found by clicking here.

The stamp has no perforations on top AND bottom

The value of this stamp (#597) can be found by clicking here.

The stamp has no perforations on BOTH sides

The value of this stamp (#604) can be found by clicking here.