Thankyou Bryce, Arthur, Beth & Nellie for such an interesting discussion, I was not near the computer most of the weekend so have only just had time to read it. I have always thought just the look of Queen Mary`s diamond choker in that photo you posted Bryce & the painting by Oswald Birley in the red dress don`t really look like the chain-link choker the Queen now wears as bracelets. I know I have read somewhere that Queen Mary left the Queen Mother a diamond choker which she had shortened to a bracelet. In your enlargement Nellie & the 75th birthday portrait of the Queen Mother, they look like a match to me. Just having another look at Roberts picture of the Chain bracelet, joined as a choker in the picture on page 211, I presume the brooch section is near the bottom of the page, judging by the very large diamond. Wouldn`t it be nice to see it as a brooch!