Goodyear cuff links.
Cira. 1970s.
 
The Goodyear Tire & Rubber Company is an American multinational tire manufacturing company founded in 1898 by Frank Seiberling and based in Akron, Ohio. Goodyear manufactures tires for automobiles, commercial trucks, light trucks, motorcycles, SUVs, race cars, airplanes, farm equipment and heavy earth-moving machinery.
It also produced bicycle tires from its founding until 1976.
As of 2017, Goodyear is one of the top four tire manufacturers along with Bridgestone (Japan), Michelin (France) and Continental (Germany).
The company was named after American Charles Goodyear, inventor of vulcanized rubber. The first Goodyear tires became popular because they were easily detachable and required little maintenance.
Though Goodyear had been manufacturing airships and balloons since the early 1900s, the first Goodyear advertising blimp flew in 1925. Today, it is one of the most recognizable advertising icons in America. The company is the most successful tire supplier in Formula One history, with more starts, wins, and constructors' championships than any other tire supplier.
 
source: https://en.wikipedia.org/wiki/Goodyear_Tire_and_Rubber_Company (citations removed).