The Japanese damascene is called Zogan inlay and has a number of techniques. I attended a class for nunome zogan a number of years...... [ATTACH]...
Alpaca is nickel silver an alloy with 60% copper, 20% nickel and 20% zinc it could be silver plated.
In the USA you need a registered trademark to mark precious metal content,it could have been made by a student/hobbyist.
Information from the "inventor"....... https://www.brainpress.com/Foldforming.html
The technique is called fold forming,example video.... [MEDIA]
Anyone can sell mammoth ivory except in about a dozen states which ban the sale of mammoth ivory.
If it's not jewelry put it in the Metalware section.
Silver soldered with brass/copper parts was considered a solid piece,so the actual silver content on your piece might be around 55 percent and not...
If it was made in the USA before 2000 it would have been illegal to mark it sterling.
It looks like an older style,but you would need the experts here to help. I would never oil an opal since it not needed for most opals,Mexican and...
The small clip part looks plated.
The 2 dark beads look like acid etched Tibetan Dzi beads.
The red/orange blossom looks like agate.
Hard to see in the photo,looks like sheet with the edges rolled over.
Looks like Balboa Park in San Diego,Ca.with Spanish Village on the bottom.
What size is the stone,is it faceted or a cabochon? The stone is probably inexpensive,but replacing the "prongs" is questionable for price.
Red rouge would polish the metal,but it won't do anything to the garnet.The garnet would need to be sanded smooth with silicon carbide sanding...
What do you consider jeweler's paste?
Looks like Chinese Turquoise..... https://www.durangosilver.com/chinaturquoisemines.htm
We collected stones all over the country opal in Idaho,sapphires rubies,garnet,gold in North Carolina,quartz crystals in Arkansas etc.Tourmaline...
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