Royal doulton identifying marks dating
During the period 1899-1940, Star, then Paragon, registered only a single trade mark.
Thus, though many different Star and Paragon backstamps can be found, all, bar one, were unregistered and cannot be dated with any great certainty.
Changes in these trade marks recorded from time to time enable collectors to estimate the approximate date of manufacture of an item.
In the UK, a trade mark can be registered with the Patent Office to ensure that the manufacturer has sole right to its use.
Hugh Irving, who had been in active control of the business for many years, became sole proprietor in September 1927, when the partnership was dissolved and Herbert Aynsley retired.
In 1930, the Company became known as Paragon China Limited.
The granting of the Royal Warrant prompted the company to introduce the new 'coat of arms' backstamp(trademark) and to describe all their products as Royal Paragon china.
Hugh Irving and his sons, Leslie and Guy, who had joined the business in 19, respectively, continued their association with the firm until it was taken over by Thomas C.Current evidence suggests that 'Royal' Paragon was no longer produced after the end of 1934.In 1938 the company was similarly honoured by the new Queen, now Queen Elizabeth, The Queen Mother, and in turn, her daughter, Her Majesty The Queen granted a Warrant of Appointment in 1955.Interestingly, Royal Warrants of Appointment granted by both HM Queen Elizabeth II and HM Queen Elizabeth, The Queen Mother to Royal Albert Limited for the manufacture of Paragon Fine Bone China are still in existence.Backstamps are essentially trade marks, the main purpose of which is to indicate the manufacturer of a piece of china.