Intriguing! Thanks Bryce! I would love to know what brooch was presented to the Queen Mother. I had a quick check in the newspapers this morning, but nothing appears to have been mentioned about the presentation to HM, although the ceremony was reported. The ceremony was of some importance to France as the then very new Prime Minister, M. Bourges-Maunoury, flew to London for the ceremony. I wonder if there was anything in the French press?

I wonder if the brooch she had pinned to her hat was the elusive ruby one we have seen before? I suspect that the hat brooch had a ruby because HM was wearing what we call the Indian pearls with the ruby clasp, and the brooch could be seen only from the back.