pressman vs printing press

pressman

noun
  • Someone who operates a printing press. 

  • A journalist or newspaper reporter. 

  • one who presses clothes 

  • one who pressgangs people into naval service 

printing press

noun
  • A mechanical device used for printing text or images repeatedly. 

  • Synonym of printing house, an institutional or commercial publisher. 

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