Yes if you look carefully on the l/h side you can see the tops of the SU carbs, on the r/h side is the very neat chrome or vitreous finished exhaust manifold and yes Loz i think it's a MK1 jag as per Inspector Morse.
It is a Jag but that looks more like an exhaust silencer than what I remember of the original air box. IIRC the old Jensen Healey had something similar.