Star notes are highly sought after small size banknotes that have a asterisk(*) either before or after a serial number. The significance of a star note comes from the bureau of engraving and printing inspecting a particular note and finding a misprint or mistake. At that point the same serial number note is created with the "star" and the misprinted note is destroyed to ensure that no two notes bear the same serial number. The only other circumstance that the asterick is used is if its the first or last note in a series instead of using eight zeros.

   The best calculations to date have run between 1 and 1.4 % of all printed notes being star notes, which co-insides with why star notes especially in uncirculated condition bring a premium.  I hope you find this guide helpfull in understanding star notes, thank you..