Optics Periscope ( viewfinder )

Description

Russian Optics Periscope  ( viewfinder ) .
Unfortunately, I do not know  him purpose.
is no information .
Perhaps it was used  for the cine kameras .
In a functional and  good condition ,
there some are signs of use  .
for sale  , all as is shown in pictures .
If you have any questions, please feel free to ask .
We will try to answer all your questions .
Please, look also at other my Items on sale .
Good Luck .