Vintage Mother of Pearl Cufflinks with case

This was passed on from my grandfather ( born is mid 1940"s to father and then when passed to me) Made by Woodsonia The main decor is .75" and goes smaller on top. We believe it is mother of pearl. The stem is gold in color. It comes in a plastic reddish color box that is 3" x 2" x 1" Looking at cufflinks we found prices from 500 to 4000 but since I cannot find the exact cufflinks I am going to list low.