James Powell & Sons were arguably the most creative glass factory Britain has ever produced. They made glass of exceptional artistic and technical quality over a period of almost 150 years. During the heyday of the Arts and Crafts Movement, James Powell & Sons were recognised both at home and aborad as a firm of international pre-eminence. Since that time, however, their achievements have been consistently undervalued, and following the closure of Whitefriars Glass in 1980, the firm has sunk into even grater obscurity. Until recently, Whitefriars had been shrouded by an aura of mystery, which had deterred many glass enthusiasts from acquiring work in what would otherwise have hitherto long ago been recognised as a rich collecting field.