Due to, increased request for Asymmetrical deign that is cap postable, this design was created.
Over all size is bigger than 149 (the nib is smaller, but bigger than #6)
grip section is thicker than symmetry counterpart.
Reduced grip ~ barrel transition bump
smaller thread pitch used
balanced feel without cap, just like symmetry.
when posted, weight balance a bit to the rear
uses Eureka ebonite feed 3rd Gen.
uses Eureka In-House Argentium nib