Je continue
Here is the second part
the small Mars Lumograph

Je le fabrique en coupant en deux un Mars Lumograph neuf. Comme il est petit, la prise en main est facile, et on peut utiliser la pointe aussi bien que le plat. C'est pratique pour les applats.
I make this one by cutting in half a regular pencil.
I actually saw this trick somewhere on the internet, but couldn't stumble upon the blog again. If you know where he is, please, post the link in the comment section, so i can acknowledge the author.

drawing done by using the small pencil

I use mostly the 0.1mm, and sometime the 0.05mm. Like every other pen it pushes toward spontaneity and quick decisions, but it's very small tip allows to build gradually the blacks of a drawing with cross hatching.


drawing with a Dteadtler 0.1