to this day, 30 years ago, and a very smart royal blue Philip Somerville hat worn for the start of a state visit to Spain.
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Photo from Getty as indicated
Royal Hats
The Bold, Beautiful and Bizarre World of Royal Millinery
Royal Hats 
Yes I remember them too.
HatQueen, thanks for the Flashback! It’s fun to have one of these, now that the post-wedding dust has settled.
HM must have liked this one a lot also. I hope you don’t mind a few other pictures, taken from several vantage points, of the same ensemble, without the blue coat.
March, 1989: Victoria Station (I like Diana’s ensemble better)
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May 25, 1989: Channel Islands (I like the car better)
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June 17, 1989: Trooping the Colour (I probably would have liked the fly-over better)
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October, 1989: Singapore
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I saw the queen around this time in a turquoise hat with a peep hole brim, which showed the floral trim through the hole.
These hats always fascinate me. There is something very charming with the way the bow appears to pas through the brim of the hat. As James says, it is very 80’s, but in a good way. That doesn’t often happen with that decade and fashion.
Remember this so well! After the success of her hat at the York wedding she had a couple more of these stunners made; they were very on trend for her at the time and she looked very elegant; not something you can say for a lot of her late 80s outfits!