Joanna had the honour of revealing the true value of the box, saying: "If that was in the right auction, I think you are going to be looking at between £4,000 and £6,000," leaving the owner astounded.
Records date back to 1720 for a small glassworks off London's Fleet Street, but Britain's longest running glass house, best known as the Whitefriars factory, really came into its own when James Powell ...