Selous Scouts item..

[leninde]

hI..

I have a litlte item in my collection I would like to get a bit of information on if possible. It measure approx. 4x4cm, its some sort of  non-magnetic metal. I have no idea what it might have been made for and not sure how to categorize it for my collection.  I just got it because it looks interesting but would like to get any ideas what it was on or ? Thank you.. Len

ps: Was thinking to  make it into a badge