photo vs stencil

photo

noun
  • A digital picture of any kind. 

  • A photo finish. 

  • A photograph. 

verb
  • To take a photograph of. 

stencil

noun
  • A two-ply master sheet for use with a mimeograph. 

  • A thin sheet, either perforated or using some other technique, with which a pattern may be produced upon a surface; a utensil that contains a perforated sheet. 

  • A pattern produced using such a utensil. 

verb
  • To print with a stencil. 

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