boutique vs sentry-box

boutique

noun
  • A small shop located within a larger one. 

  • A film production company making only a few movies per year. 

  • Any company specializing in bespoke or custom-made products or services for clientele in a niche market. 

  • A small shop, especially one that sells fashionable clothes, jewelry and the like. 

sentry-box

noun
  • A booth erected to provide rudimentary shelter to a sentry on his post. 

How often have the words boutique and sentry-box occurred in a corpus of books? (source: Google Ngram Viewer )