Odd CCCP tools.

I do apologise if this is the wrong forum for this.
My friend recently found a box containing an assortment of tools of unknown purpose with a CCCP label on it,
we were unable to find any information on it and were wondering if anyone here knew.
Image: http://i.imgur.com/AlqBntA.jpg

They look like carpenter's measuring tools to me; they from the Chelyabinsk Instrument Plant; the panel reads "CIP, Small Tool Kit, Made in the USSR".

Thanks that is rather interesting, we had assumed they were for measurements but failed with Google to find anything further.

Yeah those are totally carpenter's tools. I can't remeber what we call those but I remember my dad having a ridiculous amount of these types of tools.

Who says that only through colonization can we advance in technology and can manufacture these tools. I bet the draftsman who came up with these tools was resourceful enough to read a book on mechanical engineering and took pains in coming up with the measurments and the draft. More power to the Old Soviet Union!