bullwhip vs hunting-crop

bullwhip

noun
  • A whip made from plaited leather, often with a knotted end, for use with livestock. 

verb
  • To beat with a bullwhip. 

hunting-crop

noun
  • A hunting whip, without a thong, that can be used for opening gates. 

How often have the words bullwhip and hunting-crop occurred in a corpus of books? (source: Google Ngram Viewer )