counterfoil vs rain check

counterfoil

noun
  • the part of a cheque that is retained in the chequebook as a record; a stub 

rain check

noun
  • to make good on any experience that the customer deems unsatisfactory. 

  • A reissue, at no extra charge, of a ticket for a baseball game or other outdoor event postponed or interrupted because of rain. 

  • In social interactions, a deferred invitation, or deferred acceptance of an invitation. 

  • to provide a sold-out item or temporarily unavailable service at a later date for the running (usually special) price. 

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