Brussels lace vs bobbin lace

Brussels lace

noun
  • A kind of pillow lace that originated in and around Brussels, with sprigs applied on a net ground. 

bobbin lace

noun
  • A form of hand-made lace in which the thread is wound around bobbins on a padded cushion; pillow lace 

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