In 1993, Queen Elizabeth wore this turquoise hat with swirled brim on visits to Hungary and Scotland as well as Trooping the Colour.
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Royal Hats 
From memory at the time this hat is modelled on a traditional Hungarian hat shape; it’s certainly quite a show stopper!
HM held on to this hat and coat for another outing in Scotland 2 years later. The dress is slightly more visible this time.
August 14, 1995: Aberdeen
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Thanks so much for posting this picture – it’s such a beautiful outfit. Lovely to see her wearing heels as well.
Catherine D, I agree with everything you say! Here’s a different hat with the same coat the following year in 1994.
https://www.gettyimages.com/detail/news-photo/bundespr%C3%A4sident-richard-von-weizs%C3%A4ckerund-marianne-von-news-photo/545668065?adppopup=true
Yes, this is a lovely if slightly unusual hat for Queen Elizabeth. The colour is gorgeous and the coat, dress and accessories make the overall look very chic.
I do like this hat, the colour is lovely and once again the coat tailoring is beautiful – particularly the border around the hem and front. I so often wish we saw more than a peek of the dress underneath.