Lincrusta vs woodchip

Lincrusta

noun
  • A wallcovering made from a paste of gelled linseed oil and woodflour spread on heavy canvas and embossed with a pattern. 

woodchip

noun
  • A small fibre of wood; especially such material as used to make ingrain wallpaper, aka woodchip wallpaper. See Wikipedia article on ingrain wallpaper. 

  • A small mechanically produced piece (chip) of wood, generally from 0.5 to 10 cm in diameter, used primarily as raw material for pulp, paper and construction boards, as well as fuel and mulch. 

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