Frankly I find the current sites for Tower of London and Museum of London less than helpful for searching for crowns and frames. They used to be easier to use I feel.
--Previous Message-- : The descriptions I have read say that Mary of : Modena's coronation crown was never used : again and resides in the Museum of London. : Her state crown was used as a coronation : crown by succeeding queens, Including Mary : II as queen regnant. But I still haven't : read a really convincing description of : Queen Charlotte's crown, other than it was : set with her own diamonds (later stolen in : Ireland). I did read that some of the empty : Hanoverian crowns were sold to a jeweler in : the 1830s and were only recently returned to : Queen Elizabeth II. Those seem to have : included the frame of Queen Adelaide's new : crown; therefore it was not available for : Queen Alexandra to consider. :