Vintage-1948/1949-Pioneer round diamond etched gold tone whale back cuff links

Cuff links are smelled “Pioneer” on the whale back clasp and “Pat Pioneer Pend” inside the t-bar. Patent applied for on 6/18/1948 and was approved 6/14/1949. I’m a Poshmark Ambassador with over 1,000 items sold, have a 4.9 rating, am a top seller, and ship daily (except for Sunday’s). 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, JW10015