ascot tie vs neckerchief

ascot tie

noun
  • A type of cravat or necktie with a narrow neckband and wide wings laid one across the other. 

neckerchief

noun
  • A scarf that is worn looped or tied around the neck. 

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