Supermarine Spitfire Mk l, K9817 , QJ-R of No 616 Squadron, 

RAF Rochford, Essex, May/June 1940. One of the unexplained, ( at least as yet), 

markings anomalies of this period was the use by No 616 Sqn of the codes QJ which 

were the squadron’s pre-war codes but had been allocated to No 92 Sqn upon the