1866 nickel 3 cent/cud error

1866 nickel 3 cent. cudd error on reverse, bottom of right numeral.
Im a newb, i tried to get as clear of pics as possible.

 

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That looks like a die chip, not a cud. To be a cud the break must include the rim.

 

That I did not know. Thank you.

 

Do you think it would add much more value to the coin?