1940s/50s Mexican Silver Screw Back Earrings

Mexican silver -marked Silver Mex- screw back earrings with a whimsical trapezoid shape, from the 1940s or 50s.
2 cm at widest point, 1,5 cm high.
In great condition.
This is a vintage item.
Please take a good look at the pictures to see the condition it is in before purchasing.