rotogravure vs typescript

rotogravure

noun
  • A print made by such a method. 

  • A printing process by which the paper is rolled through intaglio cylinders. 

  • A portion of a printed work produced by this method. 

typescript

noun
  • typewritten material, especially such a copy of a manuscript 

verb
  • To transcribe into typewritten form. 

How often have the words rotogravure and typescript occurred in a corpus of books? (source: Google Ngram Viewer )