Vintage General Motors Service Cufflinks by Hickok USA, 1950s?60s Classic square cufflinks featuring the GM Service logo set within a textured frame, crafted in gold-plated alloy. These were official corporate accessories for General Motors dealership employees, embodying mid-century Americana style and automotive heritage. Made by Hickok, a renowned American manufacturer famous for their high-quality men?s accessories and patented fastening mechanisms. The hallmark is the distinctive letter ?P? in a square with a circle, confirming authenticity and origin. Materials: Gold-plated alloy Manufacturer: Hickok, USA Hallmark: Letter ?P? in square with circle (Hickok logo) ? Perfect collectible for vintage car enthusiasts, GM fans, or anyone who appreciates classic corporate memorabilia. Condition: Excellent vintage condition with minor signs of age consistent with careful use. Add a touch of automotive history and vintage class to your collection today!