This close-to-head pen.
The first patent for a pen based on spherical head was on 10/30/1888 for a man named John Loud.
Where I worked in the leather industry and not liquid ink pens and then going to work in writing on skin; Vapetkr this way put ink tank above the metal ball pass ink while spin time in contact with the surfaces.
Balls and was still made of solid unusual materials such as steel and sometimes expensive materials such as titanium
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