sympathy card vs visiting card

sympathy card

noun
  • A greeting card sent to family members of one who has died to express regret. 

  • An attempt to score points in a discussion by portraying oneself as a victim in need of sympathy (used with the verb "play"). 

visiting card

noun
  • A written card which identifies the bearer, presented for introduction when attending a business meeting or formal social gathering. 

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