1954-1960s gold tone oval shaped almond Mother-of-Pearl/onyx cuff links

Vintage 1954-1960s marked, I can’t make out the maker’s mark even with a loupe, but possibly “D & K” which would be Dealin and Francis, gold tone, oval shaped, domed, almond Mother-of-Pearl with black onyx polka dots bullet back cuff links with a complementary gift box. Please take a good look and consider the photos as part of the description. Please ask any and all questions you may have before purchasing. Bundle discounts on multiple items! Check my other listings for vintage sterling silver. 925, 950, gold, 10k, 14k, 24k, abalone, abstract, agate, Amber, amethyst, anniversary, antique, aquamarine, bead, beaded, birthday, bling, blue, bold, box, bracelet, brass, brooch, chain, China, clip on earrings, chipped, Christmas gift, cocktail, copper, costume, crushed, crystal, cubic zirconia, cuff, cz, dangle, double, earring, domed, engagement, estate, etched, fall, fishhook, flower, glass, gray, green, hammered, heart, hinge, hinged, Italy, Japan, Jasper, kids, Korea, looser claw clasp, love, man, marcasite, marquis, matching set, men, Mexico, minimalist, modern, modernist, moonstone, mother of Pearl, necklace, opal, oyster, pendant, picto, picture, post, present, prong, quartz, red, rhinestone, ribbed, rose, Ruby, screw back earrings, Santa, scroll, serpentine, signed, silver, spring, stamped, sterling, sweet, summer, Thailand, topaz, turquoise, 9079