face card vs trade card

face card

noun
  • A playing card with a face, properly a jack, queen, or king but (inexact, sometimes proscribed) sometimes also an ace or joker. 

trade card

noun
  • A trading card (such as a cigarette card). 

  • An early precursor of the business card, first produced at the beginning of the seventeenth century. 

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