Pwca favour Pubs with names associated with Coal Mining as they can meet up in such with their old ancient mates 'The Knockers'.
The Knockers | Mysterious Britain & Ireland
- www.mysteriousbritain.co.uk/england/.../the-knockers.htmlIn many old established mining areas throughout the world, there was a long tradition of mine spirits, in Cornwall these were known as the Knockers.
en.wikipedia.org/wiki/Knocker_(folklore)
The Knocker, Knacker, Bwca (Welsh), Bucca (Cornish) or Tommyknocker (US) is the Welsh and Cornish equivalent of Irish leprechauns and English and Scottish ...
www.gandolf.com/cornwall/fairies/KnockersIntro.shtml
15 Oct 2009 ... Introduction to the 'Knockers' on Gandolf dot Com.