Vintage Mother of Pearl look gold plated cufflinks

These gold plated cufflinks feature a Mother of pearl look. (May be true Mother of pearl or good imitation). The front features a clean, minimalist geometric design with 2 stripes running down the center. The were purchased in the 1950s to 1960s by my husband's grandfather. The have bullet-back closures. Highly valued especially for white tie events. Believed to be Swank brand. Must be able to come to my home to pick up.