Mexican Peacock discount Sterling Silver Brooch - Pre Eagle History

Small Peacock Brooch
Hand crafted solid sterling silver, cast from a sculpted mold.
Marked in reverse "MEX 925"
Size: approximately 1 1/x discount x 1 1/8 inches
Closure: working roll over locking pin stem/hinge
Condition: No damage. Light tarnish on reverse.
Likely Pre-Eagle Mexican silver history, pre 1948.