|Note_en=Month determined approximately by page number. Advertisement for fountain pens, mentions the [[Soennecken 595]], [[Soennecken 777]] and [[Soennecken 544]] eyedropper models and the [[Soennecken 588]] supposedly (being qualified as wearable in any position) [[safety]]. | |Note_en=Month determined approximately by page number. Advertisement for fountain pens, mentions the [[Soennecken 595]], [[Soennecken 777]] and [[Soennecken 544]] eyedropper models and the [[Soennecken 588]] supposedly (being qualified as wearable in any position) [[safety]]. |