This is one of the 600 (or so) Bf 109G-14/U4 manufactured by WNF - notable are the low (old style) ruder, Erla-canopy (missing) and the hatch for the compressed air for the 30mm MK 108 (visible in the 2nd and 3rd photo below the C3 triangle). Radio mast was mounted on the canopy and is not visible in the photos. The WNF production didn't have the small bulge under the right "cheek". What's interesting in this photo is that this particular plane has a deeper oil radiator Fo987 and IMHO bigger 660 / 190mm tires, but only a small fairing on topside of the wing is visible.