carving vs rotogravure

carving

noun
  • The act or craft of producing a carved object. 

  • A carved object. 

verb
  • Executing turns without pivoting. 

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. 

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