Does anyone know what make and model frame this is ?

Picked up recently as a fixer upper, the X prefix 5 digit serial is a tough one to track down.
Looking at it I keep thinking it looks like a raleigh paint job, but that may not be original. The dropouts seem less flat/thinner and the lugs seem a bit more ornate than standard raleigh like my other bike a raleigh banana. Its a mystery but will be a fun project