388 byte aggiunti
, 12 anni fa
In 1917, continuing with its policy of expansion, the [[Eversharp|Wahl Eversharp]] acquired the ''[[Boston Pen Company]]'', a company that already started producing good fountain pen in ebonite characterized by a clip wheel. The pens were marketed branded [[Eversharp|Wahl]], promoting as capable to alleviate the wear on the edges of the pockets thanks to their peculiar ''Roller Clip''.