Featured Sterling concha on necklace. Southwest Spanish Mexican American?

Does anyone have any idea of the origin and age of my sterling silver concha (concho)? The diameter is 4.1 cm/1.61", marked sterling on the back.
It is on a sterling bead necklace, could be a marriage.
Thanks for looking.

 

It appears to be lost wax cast and possibly mass produced.

 

Yes, those patches look like the wax was filled in places.

 

Looks like cut off sprues which were not filed clean after the piece was cast.

 

So that's what those patches are. Someone was in a hurry, or they didn't think it important because it is the back.
Do you have any idea of the age?

 

Definitely a marriage. That concho was meant to be on a leather belt.

...edited to add...or a saddle. Threaded on leather of some kind...

 

http://m.ebay.com/itm/201628257054?_mwBanner=1

 

Thanks, so it is a berry concha (concho).
Except mine is sterling silver.

 

Seconded. Someone strung the concho onto the sterling necklace so they could wear the singleton. Generally a belt would have at least four or five on it, sometimes more. The necklace looks like sterling beads strung on....? Is that a braided wire inside? If so, it's a nice quality necklace on its own; check it for maker's marks just in case. I'd give them a divorce, wear the chain on its own, and put the concho on some leather cord. But that the jewelry junkie in me talking.

 

Yes, it is braided wire, couldn't find any maker's marks. I was thinking of a divorce as well. For these two, that is, not for my dear husband and myself.

 

He's not getting rid of you that easily.(LOL) When I see beads on that sort of wire, it means someone cared and generally indicates good quality construction.