horsecloth vs serape

horsecloth

noun
  • A rug or similar cloth used to cover a horse, or as part of its trappings. 

serape

noun
  • A type of blanket worn as a cloak, especially by Spanish-Americans, or used as a saddle blanket. 

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