bullion vs cording

bullion

noun
  • A bulk quantity of precious metal, usually gold or silver, assessed by weight and typically cast as ingots. 

cording

noun
  • Decorative cord, often wrapped in colored fabric or foil 

  • The resultant decoration, or the act of decorating with cording 

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