Mexican jewelry vintage ring "22"

This is Mexican jewelry using a technique born in Mexico in the 1950s called Metales Casados, which means "mixing metals" in Spanish . On the top, we can see a motif that would have been drawn by a Mexican tribe, and we assume that the materials are crushed malachite, brass, and copper. The ring itself is made of 925 silver and has a slightly vertical design. The size is 15, so it is suitable for men's main fingers. You can see the engravings "925BR" and "MEXICO" on the inside.

*There is no problem with wearing it, but there is some deterioration in the malachite part of the top. Please check the images carefully.

Size: 22.5

Material: 925 silver, copper, brass, malachite (probably)