Crimea_River
Marshal
Just to add my 2 cents, though EN398 was technically a Mk IX, it was one of the early ones converted from a Mk. V. In my opinion, this aircraft featured the cheese cutter IFF antenna wires from the tip of the horizontal stabs to the fuselage. If you look really close at the hi res pic posted above, I think you can see portions of the wire at the time this photo was taken.