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The ''[[Ink Shut-off]]'', illustrated in the figure, was just another wrong investment: promoted as a mechanism capable to block the flow of the ink form the pen when the pen was closed, to prevent leaks because of pressure changes, (as was the case when travelling by plane, activity that was booming) it was indeed ineffective, so that the company was forced to withdraw it from the market by an order from the Federal Trade Commission.

The ''[[Ink Shut-off]]'', illustrated in the figure, was just another wrong investment: promoted as a mechanism capable to block the flow of the ink form the pen when the pen was closed, to prevent leaks because of pressure changes, (as was the case when travelling by plane, activity that was booming) it was indeed ineffective, so that the company was forced to withdraw it from the market by an order from the Federal Trade Commission.

Nel [[1935]] circa,<ref>compare in [[:File:1936-12-Wahl-Doric.jpg|questa pubblicità]] francese del dicembre 1936, ma un catalogo del 1935 mostrato in [http://www.fountainpennetwork.com/forum/topic/240156-my-1550-eversharp-mystery-pen/ questa discussione] mostra una [[Round Doric]] a [[siringa rovesciata]].</ref> seguendo di nuovo una innovazione della [[Sheaffer]] in risposta all'uscita della [[Vacumatic]], vennero introdotti anche dei modelli di [[Doric]] con corpo trasparente e riempimento a [[siringa rovesciata]], lo stesso caricamento venne adottato anche per dei [[Round Doric|modelli economici]], simili alla [[Doric]] ma prodotti in versione tonda. Alla fine degli anni '30, nonostante l'introduzione di altri modelli economici come la [[Pacemaker]] e la [[Air-lite]] la [[Wahl Eversharp]] continuò costantemente a perdere quote di mercato.

Around [[1935]],<ref>one appears in this [[:File:1936-12-Wahl-Doric.jpg|french advertisement]] dated December 1936 but in a 1935 catalog showed in [http://www.fountainpennetwork.com/forum/topic/240156-my-1550-eversharp-mystery-pen/ this discussion] a [[plunger filler]] [[Round Doric]] is shown.</ref> following another innovation made by [[Sheaffer]] after [[Vacumatic]] launch, were also introduced new [[Doric]] models with transparent body and new filling system (called ''[[plunger filler]]''), the same filling system was adopted even for some [[Vacuum Model|economic models]], similar to the [[Doric]] but produced in round smooth celluloid. In the late 30's, despite the introduction of other economic models such as [[Pacemaker]] and [[Air-lite]] the [[Wahl Eversharp]] was constantly losing market share.

That is why in [[1940]] the company did a complete restructuring, the ''Wahl Company'' was merged with the subsidiary becoming the ''Eversharp Inc.'' and the direction was entrusted Martin Strauss who in [[1941]] launched the new [[Skyline]] model. Again company distinguished itself by the revolutionary design of this pen, entrusted to [http://en.wikipedia.org/wiki/Henry_Dreyfuss Henry Dreyfuss] design, and thanks to a successful promotional campaign, the [[Skyline]] realized strong sales, bringing another time ''Eversharp'' at the top of the market; but it was also the last successful model produced by the company.  

That is why in [[1940]] the company did a complete restructuring, the ''Wahl Company'' was merged with the subsidiary becoming the ''Eversharp Inc.'' and the direction was entrusted Martin Strauss who in [[1941]] launched the new [[Skyline]] model. Again company distinguished itself by the revolutionary design of this pen, entrusted to [http://en.wikipedia.org/wiki/Henry_Dreyfuss Henry Dreyfuss] design, and thanks to a successful promotional campaign, the [[Skyline]] realized strong sales, bringing another time ''Eversharp'' at the top of the market; but it was also the last successful model produced by the company.