(like) Tweedledum and Tweedledee vs of a piece

(like) Tweedledum and Tweedledee

of a piece

prep
  • Used other than figuratively or idiomatically: see of, a, piece. 

  • Of the same kind. 

How often have the words (like) Tweedledum and Tweedledee and of a piece occurred in a corpus of books? (source: Google Ngram Viewer )