pen vs sealing wax

pen

noun
  • Marks of ink left by a pen. 

  • Penitentiary, i.e. a state or federal prison for convicted felons. 

  • The internal cartilage skeleton of a squid, shaped like a pen. 

  • An enclosure (enclosed area) used to contain domesticated animals, especially sheep or cattle. 

  • A female swan. 

  • Penalty. 

  • A writer, or their style. 

  • The bullpen. 

  • A light pen. 

  • A wing. 

  • A tool, originally made from a feather but now usually a small tubular instrument, containing ink used to write or make marks. 

verb
  • To enclose in a pen. 

  • To write (an article, a book, etc.). 

sealing wax

noun
  • Wax formerly melted onto a letter to seal it; the picture of the sender's seal was often pressed into the wax as evidence that the letter had not been opened. 

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