Any info on this dagger hand guard?

[BladeRunner2019]

I had originally asked in the What is it section if this was a tack hammer and several helpful posters suggested it was probably a guard on a small sword or dagger. Unfortunately there are no markings of any type. I'm guessing the material is brass. It is not magnetic and rings up as 79/80 on my AT Pro.

I know that isn't much to go on, but any information would be appreciated!

 

[ATpro5]

I have no info but I have to say... that is an amazing find. I'd love to know the age.

 

[OWK]

Based on the irregular placement of the hole for the base, I'd say it is an early piece.