✅ SOLVED What is this? Its copper

[DanPM94]

It's a gag loop for a horse

 

[bradyboy]

haven't we seen this before?

 

[vhs07]

haven't we seen this before?

Yep, a number of times. It's a gag loop for a horse. Of course, I'd had never known with out seeing it before on this forum

 

[Old Pueblo]

Looks like it came off some sort of old horse tack or harness equipment for livestock.

 

[Icewing]

I think it's called a "Roger Ring"

 

[flyadive]

I thought it was for a rifle, for carry of a sling?

 

[TheCannonballGuy]

For Flyadive and anybody else who doesn't already know:
Although that brass object looks like a scabbard-mount, it actually is a horse-harness component known as a gag swivel, part of a horse's bridle. The one found by DanPM94 could be either a swivel or part of a gag chain, as shown on two pages from a 1907 and 1909 horse-harness & saddlery catalog, below. Also shown in use on a horse in the modern photo. Nobody has reported seeing one in any photos of civil war horses, so apparently they are a post-civil-war relic.