I dont know but here are my thoughts in case they prompt anybody else.
Twin engined, likely to be a jet, with Martin Baker ejection seat pins. Why they are stowed rather than in the seat is a bit of a mystery. Pilot tends to keep boots on footwell rather than rudder pedals, may suggest the rear seat of a trainer albeit maybe OCU and therefore twin stick variant of front line.
Cockpit paint (lt grn) often associated with naval aircraft. RAF tend to be black overall, and those rivets would suggest late fifties or early sixties. Just out of picture at the top could be a radar scope which may suggest air defence role, likewise very pale gray (or white) on exterior.
Russian cabs could have those rivets, but they are normally blue inside.
Could be many, but Tiger Mate is baffled with this one.
