Gosh, Henri was handsome. (And Daisy looks very hip and chic. Which makes it sadder when she said all these decades later "I will never understand what he saw in me".)
It's amazing you can't see her engagement ring in any of that. That thing is huge!
Swedish royal expert and author Roger Lundgren published this photo at his Instagram, he writes:
"Here is Queen Margrethe II of Denmark browsing through my book about Princess Sibylla." https://www.instagram.com/p/CTHjV8DDvGX/