Antique Turkish Ottoman Empire 10k tested Maker stamped heavy Cuff Bracelet

Description

Antique Turkish Ottoman Empire 10k tested Maker stamped heavy Cuff Bracelet.
The metal tests at 10k and I honestly thought it was sterling because it is so dingy and tarnished. I did not clean it; I tried to take the best possible pictures.
I can tell that the one stamp is Ottoman Empire. After searching and asking several opinions (including Sotheby’s) we are unable to determine much else. It does look like the mark underneath the ottoman mark is the Sultan’s mark but I cannot be sure. In my professional opinion, I’m convinced this is a Met piece.
Weighs approximately 2.82 oz
Measures 7.75” around and 2.25” wide
Approximately 2.5” diameter
3 markings total.
Priced market.
Lot I