I was under the impression the home of the Lee Enfield family was known as RSAF Enfield Lock, in full, although in everyday speak some call it 'RSAF Enfield', some 'Enfield Lock', & some just 'Enfield', for brevity. During WW2 Maltby & Faz (& no doubt many others) were ROF's. I don't know if they were seen in a different light to justify a different title, or whether 'ROF' was just considered more 'appropriate' by WW2!