Filotecnica Milano WW2 Italian (German army) periscope- Information required

[AD123]

I have recently purchased a land army periscope made by the Filotecnica Milano factory. The model number is Ma 7850.

It is believed to have been manufactured in 1940 but I am looking for further information on this item as I cannot seem to find much online.

I am curious to know if it is ordinarily mounted on something rather than handheld. I am also curious as to who would have deployed it and what campaigns it would have likely been used in?

 

I have attached some photos for reference.