shoulder bag vs sporran

shoulder bag

noun
  • Any bag with a single strap designed to be carried on the shoulder. 

sporran

noun
  • A small pouch, usually made of either fur or plain or fur-trimmed leather, which is worn, suspended from a belt or chain, on the front of a kilt and used to hold various items normally carried in trouser pockets. 

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