to Prinsjesdag in 1962. Queen Juliana (middle) delivered the speech from the throne and was joined on the balcony by husband Princer Bernhard and daughters Princess Beatrix, Princess Irene and Princess Margriet. Their hats are such classic pieces from the time, aren’t they?!
Photo from Getty as indicated
Royal Hats 
I could definitely see the Duchess of Cornwall in Queen Juliana’s hat!
So could I.
They look like gorgeous hats and very 1960s. I wish there was a colour photograph. I tried Google and couldn’t find one.
I agree Alex. I Googled too without any luck.