imprint vs sealing wax

imprint

noun
  • An impression; the mark left behind by printing something. 

  • A distinctive marking, symbol or logo. 

  • The name and details of a publisher or printer, as printed in a book etc.; a publishing house. 

verb
  • To leave a print, impression, image, etc. 

  • To mark a gene as being from a particular parent so that only one of the two copies of the gene is expressed. 

  • To learn something indelibly at a particular stage of life, such as who one's parents are. 

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 imprint and sealing wax occurred in a corpus of books? (source: Google Ngram Viewer )