I found this detecting an old outstation hut.

[Cheese]

 

[silver]

Apparently Cheese it is universal so you could be lucky and find that it can be used for anything.

 

[Wally69]

Looks like the back connector for a pair of fancy braces. Are they about that size?

 

[Cheese]

 

[Cheese]

I found these also around the old hut
whinchester 45 long and also but not in the pic a short 45. all around c 1880.

 

[HeadsUp]

yeah trouser clip for braces as per wally post above

somewhere out in the bush is a ghost walking around using one hand to hold his pants up