cheapjack vs first-rate

cheapjack

adj
  • shabby 

noun
  • A peddler, a travelling hawker. 

first-rate

adj
  • Of a Royal Navy ship of the line in the Napoleonic Era: having at least 100 guns across three gun decks, a complement of 850–875, and weighing approximately 2,500 tons burthen. 

  • Superb, exceptional; of the best sort; very high quality. 

noun
  • A first-rate ship of the line. 

How often have the words cheapjack and first-rate occurred in a corpus of books? (source: Google Ngram Viewer )