hunting knife vs musket

hunting knife

noun
  • A large knife designed for use in hunting animals, usually with a smooth front edge and a back edge that is partially serrated for sawing. 

musket

noun
  • A kind of firearm formerly carried by the infantry of an army, originally fired by means of a match, or matchlock, for which several mechanical appliances (including the flintlock, and finally the percussion lock) were successively substituted; ultimately superseded by the rifle. 

  • A male Eurasian sparrowhawk (Accipiter nisus). 

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