What does it mean if your one dollar bill has a star at the end of its serial number?

Question

I have a one dollar bill and its serial number has a star as the tenth digit, instead of a capital letter. What does this mean?

Answer 1

it is worth a dollar

Answer 2

it means it's a copy of the original bill with that serial number. it means the original was probably lost or destroyed, like maybe it was burned or got ripped to pieces.