Source : Webster's Revised Unabridged Dictionary (1913)

Ninepence \Nine"pence\, n.; pl. {Ninepences}.
   1. An old English silver coin, worth nine pence.

   2. A New England name for the Spanish real, a coin formerly
      current in the United States, as valued at twelve and a
      half cents.

Source : WordNet®

ninepence
     n : a coin worth nine pennies