The back of the envelope features the Prince of Wales feathers.
Inside, is a letter from Claudia Spens, the head of Clarence House's Correspondence Section.
Dear Miss Daly,
The Prince of Wales has asked me to thank you for your letter of 13th October, and kind message which you have sent on the occasion of his forthcoming birthday.
His Royal Highness is most grateful to you for taking the trouble to write as you did; he was particularly touched by your kind words of support for himself, The Duke and Duchess of Cambridge and Prince George.
The Prince of Wales has asked me to send you his warmest thanks and very best wishes.