purser vs teller

purser

noun
  • The person responsible for handling the accounts on a ship, or for dealing with the passengers on a ship or aircraft. 

teller

noun
  • A bank clerk who receives and pays out money. 

  • Synonym of automated teller machine 

  • A person who tells stories. 

  • A person who counts the votes in an election. 

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