WW1 / WW2 BRITISH NAVAL OFFICERS BELT BUCKLE

Good two piece Kings Crown RN Belt Buckle
Possibly worn by a Nurse of Officer rank
(Queen Alexandra's Royal Naval Nursing Service)
Not a standard QARNNS buckle
But attached to a very old blue material belt
Approx 2.25" wide and 26" long (28" inc buckle)
Any info would be welcome !

Code: 50458