Well spotted Jinja, the remark about the PoW feathers. Quite odd. Here is the frame beside the Queen Mother's crown. Identical elements I would say.
And my guess, note guess, is that the London Museum and the Royal Collection negotiated.
--Previous Message-- : : From memory the fitted case was made at the : time Queen Aexandra had the circlet altered. : I don't recall colours. : : The PoW feathers comment does seem strange. : : Both Queen Alexandra and Queen Mary wore the : Regal Circlet to their first State Opening : of Parliament before their coronations. : : : : : --Previous Message-- : : ...used to be in the London Museum. : : It would appear that it now belongs in the : Royal Collection. : Well done !! : : : : http://www.royalcollection.org.uk/collection/75003 : : :