lithograph vs printed matter

lithograph

noun
  • A printed image produced by lithography. 

verb
  • To create a copy of an image through lithography. 

printed matter

noun
  • Printed material produced by printers and publishers, including books, magazines, brochures, booklets, publicity material and newspapers, especially in relation to cheaper postage rates on such material. 

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