nameplate vs stele

nameplate

noun
  • A plate or plaque inscribed with a name. 

  • The masthead of a newspaper. 

stele

noun
  • Any carved or engraved surface. 

  • The central core of a plant's root and stem system, especially including the vascular tissue and developed from the plerome. 

  • An upright (or formerly upright) slab containing engraved or painted decorations or inscriptions; a stela. 

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