− | Around [[1936]],<ref>at least, because it appears in this [[:File:1936-12-Wahl-Doric.jpg|french advertisement]] dated December 1936.</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. | + | 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. |