Oh my god...
I welded a thumb bracket on just the same mini.
It was a very old, very abused tugachi, he said the
Factory only had qty (2) in all of the u.s.a.
The 2 boom cylinders is what's unique.
I figured the cab was a stolen phone booth, but
In seeing yours, it appears factory.
(His was very beat up, missing all the glass as well)