pottery vs tea service

pottery

noun
  • A potter's shop or workshop, where pottery is made. 

  • The potter's craft or art: making vessels from clay. 

  • Fired ceramic wares that contain clay when formed. 

tea service

noun
  • a set of matching crockery for serving tea; normally a teapot, cups, saucers and small plates etc.; some items may be silver 

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