Fangio was a dominant force in the sport, winning around 56% of the races he entered (comparable to Schumacher's.812 winning percentage in his career). Fangio appeared in 14 of the 15 World Championship Grand Prix races held from 1950 to 1956, and won five of those races. He won 11 of the 12 Grands Prix on the British Motor Racing Club's (later to become the British Grand Prix) Silverstone Circuit, including all five in 1951 and 1952, but only the 1954 and 1955 races there. Although the top drivers typically only entered two Grand Prix races per season, Fangio entered between four and five races in a season. He won the 1950 Dutch Grand Prix at the fast Zandvoort Circuit, and was leading the 1951 Swiss Grand Prix at Zürich, but he suffered a broken fuel feed pipe and engine failure. The chassis was also badly damaged by a fall in the rain that ended the 1951 Belgian Grand Prix, which Fangio won. Fangio won the 1951 French Grand Prix at Le Mans in a non-championship event. Fangio was also a key factor in the early 1950s British Grand Prix series, which had the format of a single race held at each of four circuits over a single season. He won all of the first five British Grand Prix races at Aintree in 1950, and won the first three British Grand Prix races at Brands Hatch in 1951.
Fangio was not only a legendary driver, but also a remarkable manager, team owner and promoter. Fangio became the owner of the Alfa Romeo factory team in 1951, and was in charge of engineering and racing. He also took over the administrative duties from the factory's founder, but did not want to be its president. He sold his shares to his friend, the Alfa Romeo company's president, Cesare Minotti, in December 1952. Alfiero was still a senior engineer at the factory, and was not involved in the drivers' testing nor in their management.
In 1952, Fangio was one of the first drivers to use a fuel injection system, as the Dolomite carburettor then in use could only run fuel rich, and not fuel lean. He won the 1952 Italian Grand Prix at Monza, two laps ahead of his teammate Mike Hawthorn.
The stamp is a fancy word for a marking, and it's commonly found on silver jewelry. The stamp in the picture is stamped on the inside of a ring, where the marking specifies the quality of silver used to make the ring. Most jewelry is stamped with a number, letter, or both. Here are the most common markings. 827ec27edc