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. In [[1935]] the company introduced the  [[Dollar Pen]] model, called so for its price, just a dollar.

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.