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Unfortunately the American company, which at the beginning of the century had achieved good results in the United States, could not withstand the competition pressure from its neighbors, and had a gradual decline that led it to its closing, which occurred at the beginning of 30s. In the meantime however the fountain pen Italian industry developed in particular in the district of [[Settimo Torinese]], which led Amisani, who since 1921 had registered the trademark (({{Marchio|20926}}) in his name, to create an independent production under the name of ''"Società Anonima Penne a Serbatoio Williamson"'' a company founded in the early '30s and located in Via Pr. Amedeo, 12, Turin. There is a reference to the transfer of the trademark to a "Soc. An. Tank Pens" in August 1934, which places a limit on the birth of the new company.

Unfortunately the American company, which at the beginning of the century had achieved good results in the United States, could not withstand the competition pressure from its neighbors, and had a gradual decline that led it to its closing, which occurred at the beginning of 30s. In the meantime however the fountain pen Italian industry developed in particular in the district of [[Settimo Torinese]], which led Amisani, who since 1921 had registered the trademark (({{Marchio|20926}}) in his name, to create an independent production under the name of ''"Società Anonima Penne a Serbatoio Williamson"'' a company founded in the early '30s and located in Via Pr. Amedeo, 12, Turin. In the original registratration rhere is a reference to the transfer of the trademark to the ''"Soc. An. Penne a Serbatoio"'' in August 1934, which places a limit on the birth of the new company.