I have found reference to the two sizes and will get pics.
I does look as though Camilla is wearing the larger size! So it could be the order worn by the Queen Mother.
--Previous Message-- : : In the past we have discussed all of these, : with plenty of pics, and also the orders : having more than one class and made in more : than one size. : : I have searched my notes and cannot find the : answer to this. : : Was the Queen's Family Order made in two : sizes - larger for her grandmother and : mother? : Later, Princess Margaret wore the one given : to Queen Mary? : Or am I imagining all this? : : :