two cents vs twopenn’orth

two cents

noun
  • One's opinion or thoughts. 

  • A nearly worthless amount, alluding to placing a copper penny on each of the eyelids of a pauper's or slave's body before burial. 

twopenn’orth

How often have the words two cents and twopenn’orth occurred in a corpus of books? (source: Google Ngram Viewer )