We have been collecting rocks/gemstones for years at a variety of U.S. locations.Tourmaline from San Diego county California. [ATTACH]
I have garnets from a number of USA locations.I like the Cowee Valley NC Rhodolite garnets which are light purple.... [ATTACH]
There is still a number of people making jewelry with spoons,etc. Tools available.... https://wrapsodyjewelry.com/silverwearbender
The photos aren't clear enough to say much. The maker's mark was made with ring stamping pliers.The shank looks like it was cast with soldered on...
This site has a lot of information.... https://www.myantiquespectacles.com/history-and-identification/copy-of-history-and-identification-1
The metal piece has something to due with the 4th armored division.
The "stones" look like conch shell to me.
It could be almandine garnet,they can be dark like your photo.
You might try the search function in this public Facebook group.They do show up for sale and there is a number of NA silversmiths that can make...
Most people call it picture jasper.
Without a identified maker's mark it's impossible to date the ring.The type of engraving on the original ring has been done for over a hundred...
Looks like the ring was cast and sized at some point.
This was my finished project at the class.Shakudo base with gold foil silver sheet and wire. I meet James Binnion a mokume gane master and a...
Read this... https://abfabtreasures.wordpress.com/2010/11/27/what-is-the-difference-between-toledoware-and-damascene/
It was steel and fine silver foil.
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]
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