Up for Buy-It-Now is a new old replacement stock oil pump driven gear, Niehoff part number 117B.  According to my Niehoff Manual, this is used on the following models and years:

1926-1932 Nash..Light 6

  The gear has 12 teeth and is in brand new, never used condition and is free of any damage.   I have provided picture number 6 to show the gear and verify the application.  The other gear shown is not included with the gear shown above. 
    Please feel free to E-mail me questions.  International bidders are always welcome.  Thanks for looking!!!