This is a used Montblanc 146 fountain pen fitted with an Extra Fine nib. It is in good condition and comes without the box or papers. The clip shows no signs of brassing, there are some light surface scratches from normal use. The ink window looks nice and clear.
This pen is from the 70’s or 80’s as it is fitted with a single tone 14kt gold nib, as opposed to the modern 18kt gold two tone nib.
Below is also a picture of a writing sample of this pen.