bosal vs nosepiece

bosal

noun
  • A type of noseband used on a horse. 

nosepiece

noun
  • An animal's noseband. 

  • The outer end or point of a pipe, bellows, etc. 

  • The bridge between spectacle lenses that rests on the nose. 

  • Anything (originally a piece of armour) that protects the nose. 

  • The part of a microscope that holds the objectives. 

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