This is a large pair of vintage Mexican sterling silver, brass and black resin mans cufflinks. They are marked on the back Sterling plus incomplete circular marks that if complete would read Hecho en Mexico 925 with makers initials MFN in the center. At least that is my best interpretation of the partial strike. The round top faces of the cufflinks are silver with a brass center inlay and stylized cut out designs that reveal the black inner layer of resin material sandwiched between the top and bottom metal circles.
The tops each measure 1.25" in diameter and the combined weight is 30.2 gr.
Condition is good. They have been very lightly polished only and could use more polishing if a bright shine is desired.
If you like big and bold cufflinks, this mod pair would suit well.