Construction Numbers of I-16s?

[kurlannaiskos]

I noticed the cowling was darker than the rest of the plane and at first I thought it might be black.
(a common paint scheme for early 'Moskas')
but after examining the photo a bit more I realized it was not dark enough to be black.
if the meaning of the logo means that this aircraft was repaired and/or rebuilt then it might also have been repainted also.
if that was the case then the green paint over the original black cowling (?) may have caused the green to appear darker than usual.

[Dénes Bernád]

Interesting theory. I will check my original print tonight and return with the details.

What I am really interested in is the operational side of the story, namely when and where was this particular 'Ishak' shot down, and which unit did she belong to. I)nfo about the pilot would be noce, too.
Also, what would be the explanation of the lack of a tactical number?