I could not find much about this silversmith, although I did find another ring with the same embossed stamps. To my understanding the embossed type is an early mark around 40's. The ring has a large oval cab of black onyx that measures 5/8" long with a barley twist around the onyx.
The ring is in great condition and a size 7 ring. It is embossed Made Mexico Sterling, below it is marked with the silversmiths name Barrera as shown in the pictures.
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