ectype vs microfiche

ectype

noun
  • An object in relievo or embossed. 

  • A copy, reproduction; especially as contrasted with the original, archetype, or prototype. 

  • An idea or impression that corresponds to external reality. 

  • An impression (in wax, clay, &c.) of a seal or medal. 

microfiche

noun
  • A device used to magnify and read these sheets. 

  • A sheet of microfilm, six by four inches, holding several hundred reduced images of document pages, read using a microfiche reader or microfilm reader. 

verb
  • To convert (documents) to microfiche format. 

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