The Collaborative International Dictionary of English v.0.48:

Florence \Flor"ence\, n. [From the city of Florence: cf. F.
   florence a kind of cloth, OF. florin.]
   1. An ancient gold coin of the time of Edward III., of six
      shillings sterling value. --Camden.
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   2. A kind of cloth. --Johnson.
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   Florence flask. See under Flask.

   Florence oil, olive oil prepared in Florence.
      [1913 Webster]