blazonry vs insignia

blazonry

noun
  • A coat of arms; an armorial bearing or bearings. 

  • An artistic representation or display. 

  • Blazon. 

insignia

noun
  • A patch or other object that indicates a person's official or military rank, or membership in a group or organization. 

  • A mark or token by which anything is known. 

  • A symbol or token of personal power, status, or office, or of an official body of government or jurisdiction. 

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