Text of letter from George V to those who were wounded, inscribed with the Royal Coat of Arms, Buckingham Palace and dated 1918:
The Queen and I wish God-speed, a safe return to the happiness and joy of home life with an early restoration to health. A grateful Mother Country thanks you for faithful services.
(Signed George R V. The original letter would probably have been handwritten by the King, however it would have then been printed so that multiple copies were created. How these were distributed is not clear - they were not sent to every soldier but were probably mailed).