The story of Bristol Blue Glass - that beautiful soft-blue glassware which swept to popularity in the final decades of the Georgian era.

Glass containing cobalt has been discovered from the Babylonian-Assyrian period, the Mycenaean era, and the Roman Empire. Commercially, cobalt was not used as a

With nearly 400 photographs, this attractive guide showcases the wide range of cobalt blue glass availiable to the collector along with their newly updated mark

The combined training and experience of the authors of this classic in the varied activities of painting conservation, cultural research, chemistry, physics, an