pasteboard vs visiting card

pasteboard

noun
  • Card stock. 

  • A widget allowing multiple users to paste and share text or other items. 

adj
  • unsubstantial; flimsy 

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 pasteboard and visiting card occurred in a corpus of books? (source: Google Ngram Viewer )