billfold vs talon

billfold

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

talon

noun
  • A document that could be detached and presented in exchange for a block of further coupons on a bond, when the original block had been used up. 

  • One of certain small prominences on the hind part of the face of an elephant's tooth. 

  • A sharp, hooked claw of a bird of prey or other predatory animal. 

  • A kind of moulding, concave at the bottom and convex at the top; an ogee. (When the concave part is at the top, it is called an inverted talon.) 

  • The remaining stock of undealt cards. 

  • The shoulder of the bolt of a lock on which the key acts to shoot the bolt. 

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