Looks like a brooch or pin, but can't figure out the back side.

[Iron Buzz]

This came from a park that has been a park for a long time. As far as I know, it has never been a homestead. I say that because it might eliminate some possibilities. The hook at the bottom of the back view looks like the hook I've seen on some suspender yokes, also possibly a picture hanger, but there are problems with both of those guesses.

 

[nhbenz]

Sash buckle I’d say.

 

[Iron Buzz]

Sash buckle I’d say.

Oh, I see what you mean... I'm actually holding it sideways?

 

[A2coins]

Ill put my cash on it being a sash

 

[Tony in SC]

Victorian buckle of sorts.

 

[Iron Buzz]

Ill put my cash on it being a sash

You're sure you're not being rash?

 

[OldNBroken]

looks like a scarf brooch. Or whatever you'd call it.

 

[A2coins]

Id still put it in my stash or sell it for cash