Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
Vintage Mexican Calcite Screw Back Earrings in Sterling Silver
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Vintage Mexican Calcite Screw Back Earrings in Sterling Silver

Vintage Mexican sterling silver & Calcite round button style screw back earrings.
The stones are embellished with twisted wire.
They measure 3/4" wide. The dome of the stones measure 8mm high. 
Screws work great, no stripping.
Together they weigh 14.1 grams. 
Marked Mexico Silver on the back.
They have not been cleaned or polished to preserve the patina.