1952 | 1952 Summer Olympics | the season | horse racing | motorcycle | Grand Prix motorcycle racing | Grand Canyon | Horse racing | auto racing | Grand Trunk Railway | Grand National | Grand Rapids, Michigan | Grand Prix | Grand Duchy of Lithuania | National Museum of Racing and Hall of Fame | Grand Central Terminal | 2005 NFL season | Grand Theft Auto: San Andreas | Grand Theft Auto IV | Grand Tour | Grand Ole Opry | 1995 AFL season | Auto racing | Motorcycle | Grand Duchy of Hesse | 1952 in baseball | Grand Rapids | season | Racing Club de Avellaneda | Motorcycle speedway |
At the 1952 German Grand Prix held at Solitude, Amm crashed and broke a leg, returning later in the 1952 Grand Prix motorcycle racing season to win the 350 cc class for the 1952 Nations Grand Prix held at Monza in Italy.