billfold vs scrip

billfold

noun
  • A small, folding sleeve or case designed to hold paper currency, as well as credit cards, pictures, etc. 

scrip

noun
  • A small medieval bag used to carry food, money, utensils etc. 

  • A substitute for legal tender that is produced by a local government or a private organization. 

  • A scrap of paper. 

  • A medical prescription. 

  • A share certificate. 

  • A document signifying a power to obtain a specified acreage of public land. 

  • A voucher or token coin used in place of legal tender for payment of wages. 

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