Maybe they used a core drill and sliced the core. https://www.eternaltools.com/thin-wall-diamond-core-drills
For commercial made sterling jewelry made in the USA it is true. But sterling made in other countries I would not know since I do not buy...
I see the signed name,but what is directly below the sterling mark?
You listed it as NA,but you don't have proof that it is.You might want to read this. https://www.doi.gov/iacb/act
It's gold filled and not solid gold.
Palm tree root similar to this one. https://www.worthpoint.com/worthopedia/vintage-early-1900s-indonesian-carved-401673176
How to make a sister hook clasp..... [MEDIA]
They were everywhere through the 60/70's and probably later.
The ID bracelets have been around since the 1930's,someone else may know the specific dates for the sister clasp. Sister hook clasp on Google.......
That is a sister clasp,still sold today.
You could try to oxidize the silver at home,if it doesn't work your pieces are rhodium plated........
It depends on where it was made and when.The majority of commercially made sterling in the USA has been rhodium plated since the late 1970's.There...
What size is it?
Shuron has been in business since 1865.
Printing plate
No icebergs there,they are rock formations.
Saw this on the news this morning..... https://www.cnn.com/style/article/royal-mint-gold-coin-scli-intl-gbr/index.html
The 23 is the bridge size, looks like the lens is a P3 shape.I believe Wilson has been around since the 1930's,not sure when they were making the...
Is there a makers mark on the bridge?
The tagua nut is native to South America,maybe that is a clue to origin.
Separate names with a comma.