cutlery vs pencil case

cutlery

noun
  • The business of a cutler. 

  • A collective ensemble of eating and serving utensils such as knives, forks and spoons. 

pencil case

noun
  • An object purposed to contain different stationery like pencil, rubber, correction fluid, etc. 

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