This profile is based on a photo of an unknown example, probably
during summer or autumn 1941 on the Moscow front.
A careful observation of the photo shows some characteristics:
it is an early short nosed example, with slats;
it has the radio mast;
it wears a white 6 on the tail, but it has a (blue?) 75 on the rudder,
over the red star;
it has a green/worn black base camouflage, with fresh black bands hand
painted on the tail and rear fuselage;
it has particularly large stars with a black outline under the wings;
it has modified main undercarriage covers; probably they were cutten after
a damaging or to have a better access to the brakes for maintenance;
it has black painted and heavily worn propeller blades.
A hypothetic recostruction of the camo scheme, based on the observation
of the wing of the second photo. Black retouches look localized on the
wingroots and on the junctions of outer wing panels.