Their company held a royal warrant and made glass for the aristocrats of Europe.
The company was awarded a royal warrant before William's death in 1913.
He was noted for the quality of his products and received several royal warrants.
But the Guardian demanded two or three times that someone should read aloud the royal warrant.
Instead, the royal warrant devolved this power to the Company.
The last of the royal warrants was issued in 1921.
The latter developed into the militia, and was usually embodied by a royal warrant.
In 1887, he became the first Irish photographer to be granted the royal warrant.
The royal warrant was given on 25 October 1939.
After three months' imprisonment he was released by royal warrant on 4 June.