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With the opening of the store, he started sales of nibs, ink and handwriting workbooks that were a hit among the college students, so that in 1876 he moved to the university city of Bonn. Due to the success of his style the company had expanded significantly, and in 1883 a  three floors home was built in [http://de.wikipedia.org/wiki/Poppelsdorf Poppelsdorf], in the Bonn center, where approximately forty employees operates. In this same period, the company expanded in the writing instruments market, thanks to inventions like the loose-leaf notebook, and the paper drill. The [[Soennecken]] became one of the leading German manufacturers in the field of stationery, also extending its production to office furniture.  

With the opening of the store, he started sales of nibs, ink and handwriting workbooks that were a hit among the college students, so that in 1876 he moved to the university city of Bonn. Due to the success of his style the company had expanded significantly, and in 1883 a  three floors home was built in [http://de.wikipedia.org/wiki/Poppelsdorf Poppelsdorf], in the Bonn center, where approximately forty employees operates. In this same period, the company expanded in the writing instruments market, thanks to inventions like the loose-leaf notebook, and the paper drill. The [[Soennecken]] became one of the leading German manufacturers in the field of stationery, also extending its production to office furniture.  

[[Image:StemmaSoennecken.jpg|thumb|Logo della Soennecken|150px|left|Photos of a [[Soennecken]] stone logo present on the company building]]

[[Image:StemmaSoennecken.jpg|thumb|Logo della Soennecken|150px|left|Photos of a [[Soennecken]] stone logo present on the company building]]

The start of  fountain pens production is not known precisely, but it is known that they were listed in a catalog of 1890, along with over 150 other stationery products. These models were hard rubber eyedropper pens, characterized by a lock line for the cap. These pens were characterized by the imprinting ''F. Soennecken 554'' and were available in four sizes (numbered from 3 to 6) and equipped with the gold nib produced by the company.

The start of  fountain pens production is not known precisely, but it is known that they were listed in a catalog of 1890, along with over 150 other stationery products. These models were hard rubber eyedropper pens, characterized by a lock line for the cap. These pens were characterized by the imprinting ''F. Soennecken 554'' and were available in four sizes (numbered from 3 to 6) and equipped with the gold nib produced by the company.