carbine vs flintlock

carbine

noun
  • A rifle with a short barrel. 

flintlock

noun
  • An early type of firearm, using a spring-loaded flint to strike sparks into the firing pan. 

  • A type of lock used on muskets, rifles, and pistols from the early 17th to the mid-19th century. 

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