This is a Montblanc Slimline / S Line 2118 cartridge / converter fountain pen in black c. 1980-1982. The 5 7/16 inch long pen is similar to the Noblesse models, but differs primarily in having a plated stainless steel nib and a plastic Monblanc star logo insert at the end of the long bar clip. The 2118 has a single trim band at the top of the barrel that meets the cap when closed and a Montblanc star logo at the cap top and barrel end. MONT over BLANC and GERMANY are stamped on the front face of the cap below the clip. The 2118 has a gold plated stainless steel nib stamped with the Montblanc logo. It has gold plated trim and the metal cap and barrel came in blue, brown, green, burgundy red, black, white, and yellow matte finishes. Matching capped rollerball, pushbutton ballpoint pens and pushbutton pencils were also made.