Hi Konstantin,
I agree that the text has something questionable.
In 1944, the workshop employees have mastered the repair of IL-2, but in the process of development there were many difficulties.
On the other way, the caption of a photo says
Hissar, in November 1943 a group of pilots of the 106th Attack Aviation Regiment receives IL-2 aircraft after overhaul
but the caption looks referred to the singleseater plane of the photo above, while the caption of both photos below (the twoseaters) is vague.
So, the planes could be photographed in 1944.
Probably the text means that they started the maintenance in late 1943, but they had problems and learned to do it well only in 1944.
About the silver wings, well, it is possible that their uppersurface is silver too. My first version of the drawing was so, and it is possible that I will restore it.
Another doubt is that one of the planes could have green and black on the sides of the nose. But I found strange that they repained half plane silver, and they saved a small amount of black paint.
Regards
Massimo