It has been common knowledge to informed collectors that many times the finest and rarest art glass is found unsigned.

A saboteur in the house of art and a comedienne in the house of art theory Lawler has spent three decades documenting the secret life of art. Functioning as a kind of one-woman CSI unit she has photographed pictures and objects in collectors' homes in galleries on the walls of auction houses and off the walls in museum storage.

Megacollectors suppose they can enter art history by spending astronomical amounts.