70 years ago to June 4, 1953. Queen Salote Tupou III of Tonga and the Sultan of Johore to placed wreaths at the Cenotaph during coronation celebrations.
Thanks, Jake, for suggesting this photo!
If there are any royal hats worn today or tomorrow, please share them in the comments.
Images from Getty as indicated
Royal Hats 
I remember my Mum telling me about Queen Salote at Queen Elizabeth II’s coronation. She was an impressive woman, over 6 feet tall and rode in an open carriage in the pouring rain during the procession. You can read about it here – https://www.newyorker.com/magazine/1953/06/13/queen-elizabeth-coronation-london
What a terrific photo. I suspect the colours are wonderful. Are the stands in the background the one’s that were built for the Coronation procession?
And I love the Queen’s shoes. Sensible for walking and standing.
This is fascinating! Many thanks to you and Jake for sharing these uniquely shaped hats.