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The [[Wahl Eversharp]] activities in the  writing instruments field began in [[1914]] with the launch of ''Eversharp'' mechanical pencil. For many times it was said that that was the same as the ''Ever-Sharp'' pencil created by the Japanese inventor Tokuji Hayakawa, that two years earlier had founded in Tokyo a homonym company, today still active as [http://en.wikipedia.org/wiki/Sharp_Corporation Sharp]. But [http://www.vintagepens.com/Eversharp_history.htm subsequent searches] have shown that the ''Eversharp'' pencil was invented by Charles Keeran (patent {{Cite patent|US|1130741}}) in [[1913]] and then the invention was sold for production to the ''Wahl Adding Machine''.

The [[Wahl Eversharp]] activities in the  writing instruments field began in [[1914]] with the launch of ''Eversharp'' mechanical pencil. For many times it was said that that was the same as the ''Ever-Sharp'' pencil created by the Japanese inventor Tokuji Hayakawa, that two years earlier had founded in Tokyo a homonym company, today still active as [http://en.wikipedia.org/wiki/Sharp_Corporation Sharp]. But [http://www.vintagepens.com/Eversharp_history.htm subsequent searches] have shown that the ''Eversharp'' pencil was invented by Charles Keeran (patent {{Cite patent|US|1130741}}) in [[1913]] and then the invention was sold for production to the ''Wahl Adding Machine''.

In [[1917]], continuing with its expansion policy, [[Wahl Eversharp]] acquired the ''[[Boston Fountain Pen Company]]'', a company that already started producing good hard rubber fountain pen characterized by a wheel clip. The pens were market branded ad [[Wahl Eversharp|Wahl]], promoting them as capable to alleviate the wear on the edges of the pockets thanks to their peculiar ''[[Roller Clip]]''.

In [[1917]], continuing with its expansion policy, [[Wahl Eversharp]] acquired the ''[[Boston Fountain Pen Company]]'', a company that already started producing good hard rubber fountain pen characterized by a wheel clip. The pens were market branded ad [[Wahl Eversharp|Wahl]], promoving them as capable to alleviate the wear on the edges of the pockets thanks to their peculiar ''[[Roller Clip]]''.

The new model, called [[Tempoint]], was a big success and [[Wahl Eversharp]] climbed on top of sales ranking, but the unexpected success involved considerable problems for the production, which was not efficient. That is why the company invested heavily in improving production structures and in [[1921]] launched a new line of metal pens, called [[Wahl Engine Turned|Wahl All Metal Fountain Pen]] for which they have prepared an efficient production line. These pens have not to be confused with an earlier production line, dated between [[1919]] and [[1920]], of overlayed metal pens,<ref>As reported in http://www.fountainpennetwork.com/forum/index.php?s=aca8536317f4b3a8bae7a3774b333542&showtopic=199</ref> still using the ''[[Roller Clip]]''.

The new model, called [[Tempoint]], was a big success and [[Wahl Eversharp]] climbed on top of sales ranking, but the unexpected success involved considerable problems for the production, which was not efficient. That is why the company invested heavily in improving production structures and in [[1921]] launched a new line of metal pens, called [[Wahl Engine Turned|Wahl All Metal Fountain Pen]] for which they have prepared an efficient production line. These pens have not to be confused with an earlier production line, dated between [[1919]] and [[1920]], of overlayed metal pens,<ref>As reported in http://www.fountainpennetwork.com/forum/index.php?s=aca8536317f4b3a8bae7a3774b333542&showtopic=199</ref> still using the ''[[Roller Clip]]''.