_, #Teiken #FountainPen, pocket sized, probably from the 1960s to early 1970s, when long-shory pens were all the craze. (Probably produced by #Sailor.)
I really like small pens that post full-size in general, and this one posts really securely.
Nib: steel, both fine and medium. Turn it around to write with a different line width. Writes a little dry but I really like it that way.