QARANC Army Medical Services schools of nursing SEN badge

A scarce original Elizabeth II period 'Queen Alexandra's Royal Army Nursing Corps, Army Medical Services schools of nursing State Enrolled Nurse pin badge'; oxidized silver plated example inlaid with green enamel, worn on the left side of the ward dress. Very good condition, complete with original pin fittings, no stress marks or damage to the enamel.Diameter approx 25mm.