Launched in Chicago in 1948, where it was quickly nicknamed 'The Flying Pig', the '45' played a significant rÙle in the energy-consuming industrial expansion of the post-war period, especially in the USA, where almost 50.000 '45's were sold in 1949. By 1950, almost all Gnagg Booster production had been moved to North America, where an office was established in New York and a factory in Philadelphia.