http://www.logos.com/product/18392/the-waldensian-church-history-collection
Currently at $40. I'm in at $30
Many of these volumes I've read over the years, and this set represents top quality works on the subject. I'm prepared to bid higher if I need to.
Bought it a few years ago, but a lot more expensive at $80.99.
Recommended for anyone who wants to study the history of this pre-Protestant group of "Reformers before the Reformation."