Pilot Custom 845  <FA>  14K

The pen point is nearly F size.
And it is a very beautiful finish.  This is the quality of Pilot fountain pen.
Folcan(FA) nib has a distinctive shape.  Both sides of the nib is scooped out, the shape of the tip is sharp.
This shape produces wonderful pliable writing taste.  Please enjoy steplessly-feeling until a very thick line from fine line.