Did you clean the stone with alcohol before testing? The stone looks like tourmaline and most stones are set by hand. The ring looks like it was...
What size are the pins? They look like lingerie pins.
The Toledo knife is missing the twisted wire on the handle.
Probably didn't like the poor repair on it with the excess solder .
The piece he is standing on is too blurry in the photo.
Sterling can tarnish to a brown color then to black naturally,it could have had an applied patina. The green stone on top is malachite,others look...
Measure the inside of a ring,instead of using the area you are with the bead.Place the 2 outside areas inside the ring shanks and expand the measure.
Hard to say who made it,a number of companies were making them 40 years ago including a company in Germany.
Looks like someone didn't clean off all the flux after taking it out of the mold.
The one on the left looks like a French/Spanish pruning knife,no way to date it since they have been made for at least 200 years.
What does it look like when you shine a light towards the top of the stone?
C in a circle for copyright.
The proof is on the back surface,it was chased on a soft surface.
https://military-history.fandom.com/wiki/Trench_art
The plate could have been machine stamped,but the design was hand chased.
It looks like a brass tube soldered to a brass plate,not a spent shell.
While the soldiers were in the trenches..... the enemy knew where they were.
Flaring tool= a piece of wood and a hammer.
No one can tell which mine the turquoise came from by looking at a photo.
yes
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