Modifiche

The first fountain pen was introduced in [[1933]]<ref>this date is cited [http://www.billspens.com/BillsPens/esterbrook/esterbrook.htm here].</ref> corresponding to the first patent for interchangeable nibs, called [[Renew-Point]]. In [[1935]] the company introduced the  [[Dollar Pen]] model, called so for its price, just a dollar. A British production, made by [[Conway Stewart]] from the mid-1930s to the 1950s is however known,<ref>according to what is reported at [http://www.esterbrook.net/relief.shtml this page].</ref> for the model called [[Relief]].

The first fountain pen was introduced in [[1933]]<ref>this date is cited [https://web.archive.org/web/20141111173638/http://www.billspens.com/BillsPens/esterbrook/esterbrook.htm here].</ref> corresponding to the first patent for interchangeable nibs, called [[Renew-Point]]. In [[1935]] the company introduced the  [[Dollar Pen]] model, called so for its price, just a dollar. A British production, made by [[Conway Stewart]] from the mid-1930s to the 1950s is however known,<ref>according to what is reported at [http://www.esterbrook.net/relief.shtml this page].</ref> for the model called [[Relief]].