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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 810, 812, 814, 816 up to 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 [[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 810, 812, 814, 816 up to 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.

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