correspondent vs obverse

correspondent

adj
  • Corresponding; suitable; adapted; congruous. 

  • Conforming; obedient. 

noun
  • Someone who or something which corresponds. 

  • A journalist who sends reports back to a newspaper or radio or television station from a distant or overseas location. 

  • Someone who communicates with another person, or a publication, by writing. 

obverse

adj
  • Corresponding; complementary. 

  • Having the base, or end next to the attachment, narrower than the top. 

  • Turned or facing toward the observer. 

noun
  • A proposition obtained by obversion, e.g. All men are mortal => No man is immortal. 

  • The heads side of a coin, or the side of a medal or badge that has the principal design. 

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