TK pistol?

[Al-muell]

I have tried this elsewhere but wasn't able to get recognized.
I bought this pistol (or at least what's left of it) with information that it may be Tula-Korovin (TK) pistol. Later I was told (elsewhere) that it may be German PPK. Well I am sure it isn't as it is ~107mm long.
I know it is hard to say anything because of it's condition (it has to be cleaned yet, esp. inside, as not much more can be done to make the outside look better, but I cannot afford to do that right now) but can someone possibly tell me what it is?
Thank You in advance.

Well, it's not Tokarev (TT) and it doesn't even resemble it. I have been told it may be Tula-Korovin. The name was something new to me, but later I've heard there was such pistol.