equipage vs kit violin

equipage

noun
  • A type of horse-drawn carriage. 

  • Equipment or supplies, especially military ones. 

  • The carriage together with attendants; a retinue. 

kit violin

noun
  • A very small long-necked violin that came in a variety of shapes and configurations, meant to be carried in a pocket and intended for dancing instructors to carry to accompany their students. 

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