chiselling vs gravure

chiselling

noun
  • A piece of work produced using a chisel. 

gravure

noun
  • A type of intaglio printing process, in which an image is engraved onto a rotating copper cylinder. 

  • A style of Japanese softcore; glamour photography. 

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