Translations:Stiassi e Tantini/19/en

After World War II the company faced an increased competition by the impact of the molded plastic introduction in fountain pens production, whose circulation was rapidly increasing in Europe. All series were reviewed by using the piston filler, then was introduced the Vertex line, a covered nib pen (later replaced by Tabo V) and the two lines S and CO to indicate respectively the models with hooded nib and the models with metal cap, (CO is acronym of Cappuccio Oro, meaning gold cap).