Translations:Eyedropper filler/4/en

Because of its simple construction, this "system" was adopted by all manufacturers from the 19th century to the dawn of the development of the fountain pen, and remained in use until the beginning of the 20th century. The system is simple, especially in terms of technical requirements for construction, and also has the advantage of allowing a large capacity of ink, greater than any other, as determined only by the size of the pen body.