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The first [[safety]] fountain pen was built in [[1905]] (more precisely it appears for the first time in a catalog of that year). It was making use of a device similar to that adopted by [[Kaweco]], with a bump on the bottom of the cap that allowed to facilitate the rotation (and the consequent return of the mechanism), by setting the cap on the back of the pen, in a corresponding incision. There were shown over 30 different models of those new pens in a [[1905]] catalog.

The first [[safety]] fountain pen was built in [[1905]] (more precisely it appears for the first time in a catalog of that year). It was making use of a device similar to that adopted by [[Kaweco]], with a bump on the bottom of the cap that allowed to facilitate the rotation (and the consequent return of the mechanism), by setting the cap on the back of the pen, in a corresponding incision. There were shown over 30 different models of those new pens in a [[1905]] catalog.

Nel [[1913]] venne ampliata la gamma delle stilografiche, i modelli a corpo liscio vennero identificati con numeri 8, 10, 12, 14 e 16, quelli intagliati con [[Soennecken 810|810]], [[Soennecken 812|812]], [[Soennecken 814|814]], [[Soennecken 816|816]] fino ad [[Soennecken 820|820]], con prezzi fra 10 e 25 marchi. Vennero anche prodotti modelli con verette placcate oro, o direttamente in oro, identificati per l'apposizione di una Z al numero della penna. Vennero realizzati anche modelli in metallo prezioso, quelli in oro erano identificati dal numero 11 preposto al numero del modello, mentre quelli in argento dal numero 10.  

In [[1913]] the range of fountain pens was extended. Smooth body models were identified with numbers 8, 10, 12, 14 and 16, the carved ones with numbers [[Soennecken 810|810]], [[Soennecken 812|812]], [[Soennecken 814|814]], [[Soennecken 816|816]] up to [[Soennecken 820|820]], and with prices between 10 and 25 marks. Models were also made with gold plated or gold bands, identified by the application of a Z after the number of the pen. Models were also made ​​of precious metals, the gold ones were identified by adding number 11 before the normal model number, while the number 10 was used for the silver ones.  

In [[1927]] were introduced the first [[lever filler]] models, discontinued  after three years, in [[1930]], when it was introduced a particular [[button filler]] system, characterized by a protection shell that allowed to hide the hard rubber button, which was operated by rotating the shell. The new system received great acclaim, although the production of [[safety]] pens was maintained until [[1939]]. The finest line of pens, equipped with the new [[button filler]] system, was named [[Rheingold]] (''Rhein gold''), inspired by the name of the treasure it the Wagner's ring Cycle, and were characterized by a decoration on top of the cap that consisted in an "S" letter surrounded by an inlaid white circle in turn surrounded by inlaid rays.  

In [[1927]] were introduced the first [[lever filler]] models, discontinued  after three years, in [[1930]], when it was introduced a particular [[button filler]] system, characterized by a protection shell that allowed to hide the hard rubber button, which was operated by rotating the shell. The new system received great acclaim, although the production of [[safety]] pens was maintained until [[1939]]. The finest line of pens, equipped with the new [[button filler]] system, was named [[Rheingold]] (''Rhein gold''), inspired by the name of the treasure it the Wagner's ring Cycle, and were characterized by a decoration on top of the cap that consisted in an "S" letter surrounded by an inlaid white circle in turn surrounded by inlaid rays.