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The collaboration with Clerici continued until [[1924]], when Zanini founded his personal company, with the name ''Fabbrica di penne stilografiche e commercio, stampe in genere e riproduzioni opere d'arte''.<ref>meaning ''Factory for fountain pens, prints and art reprints''.</ref> In [[1925]], the activity thus far hosted in Zanini own house, was moved to Sesto Calende. The [[Ancora]] trademark ({{Marchio|40112}}) was indeed registered only in [[1929]]. In [[1938]] the production was moved to Arona, where new plants were created.<ref>both dates where reported by Letizia Jacopini in his book as result of a search in the Bologna Chamber of Commerce documents.</ref> After the death of the founder, the son Alfredo took over the management, up until [[1975]] when the company was closed.

The collaboration with Clerici continued until [[1924]], when Zanini founded his personal company, with the name ''Fabbrica di penne stilografiche e commercio, stampe in genere e riproduzioni opere d'arte''.<ref>meaning ''Factory for fountain pens, prints and art reprints''.</ref> In [[1925]], the activity thus far hosted in Zanini own house, was moved to Sesto Calende. The [[Ancora]] trademark ({{Marchio|40112}}) was indeed registered only in [[1929]]. In the mid-1930s Zanini moved to Arona and with the collaboration of his children (Alfredo, Maria, Adele, Giuseppe, Franco, Antonio) began construction of a new factory; the headquarters were moved to Arona in [[1938]]. In the early 1940s with the death of the founder (which occurred on 7/7/1940), the sons continued the activities and in about 1950 Alfredo took over the management, acquiring the brand and continuing the activities until [[1975]], when the company closed.