This is a desk pen is intended to write without the cap on the post as it would swing too much. The rings are a high grade brass. The first one is marked as an item with an ID (Sold) and the series after this are unmarked but still very unique (not have the same body material inclusions or waves).
A bold pen for those who like something really different. This is a pen which is optically balanced where the cap and post are the same. Each pen has unique patterns in the black body, you can only see this in very strong light of when shining inside the post and cap.
Will be marked