Item: Vintage Mexican Carved Abalone Silver Plated Heavy Panel Bracelet. This is stamped 925, Sterling, and Taxco. I tested it, and it is not sterling silver. It is most likely silver plated or alpaca. 
 
Measurements: 7 & 1/4 inches long and 1 & 1/8th inches wide..
 
Condition: Vintage, previously owned. There are only very minor signs of age/use/patina.