couturier vs draughtsman

couturier

noun
  • A person who designs haute couture (high fashion). 

  • A company that is owned by or employs such a person; a fashion house. 

draughtsman

noun
  • A person skilled at drawing engineering or architectural plans. 

  • A piece in the game of draughts (checkers). 

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