Dear HRH ,
Congratulations.
Joining you in celebrating your diamond jubilee.
Gems are valuable for good reason – you are a gem in the course of mankind’s progress.
Britain has enjoyed much good fortune during your reign and inspiration from your constancy.
Now – I must explore the commonwealth inspired by your distinguished travels!
I have the honour to be, Madam, Your Majesty’s humble and obedient servant.
Roger Ellman