Royal warrants are granted to individuals or businesses that have supplied goods for at least five years to HM the Queen, HRH the Duke of Edinburgh or HRH the Prince of Wales.

Blissett Bookbinders is a fourth generation book binding company that has been binding for HM the Queen for the last seven years.

Gary Blissett, managing director of the London-based company, said: "We applied for a royal warrant and had to meet the necessary level of quality and service in order to receive it.

"We were fortunate enough to be granted it in December last year."

There are around 850 Royal Warrant holders that represent a cross-section of trade and industry.

Blissett Bookbinders was established in 1920 and provides bookbinding services to libraries, universities and schools.