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[[Image:1939-06-Artus-Favorit.jpg|left|thumb|150px|A 1939  [[Artus Favorit]] advertisement.]]

[[Image:1939-06-Artus-Favorit.jpg|left|thumb|150px|A 1939  [[Artus Favorit]] advertisement.]]

Also ''Joseph C. Lamy'' could foresee the times sensing the potential of plastic, and acquired the ''[[Artus]] Fullaltergesellschaft Kaufmann und Co.'', whose origins seem to date back to 1936/37, beginning, first in Europe, to produce plastic injection pens. The first model was made with a new patented [[piston filler]] mechanism, still marketed under the [[Artus]] brand while stood out clearly from predecessors.

Also ''Joseph C. Lamy'' could foresee the times sensing the potential of plastic, and acquired the ''[[Artus]] Fullaltergesellschaft Kaufmann und Co.'', whose origins seem to date back to 1936/37, beginning, first in Europe, to produce plastic injection pens. The first model was made with a new patented [[piston filler]] mechanism, still marketed under the [[Artus]] brand while stood out clearly from predecessors.

It is unclear whether the production of plastic pens began around [[1939]], approximate date of the acquisition of [[Artus]], or only after the war. It is not clear even when it ceased to use the [[Orthos]] trademark, but at least until 1941 <ref>at least as reported in this [http://www.fountainpennetwork.com/forum/index.php?showtopic=19039 discussion].</ref> the brands coexisted sharing address and phone number, even during a change of venue took place in 1940.

It is unclear whether the production of plastic pens began around [[1939]], approximate date of the acquisition of [[Artus]], or only after the war. It is not clear even when it ceased to use the [[Orthos]] trademark, but at least until 1941 <ref>at least as reported in this [http://www.fountainpennetwork.com/forum/index.php?showtopic=19039 discussion].</ref> the brands coexisted sharing address and phone number, even during a change of venue took place in 1940.