OMAS Omas Fountain Pen Black (Part 5) The nib has the markings: omas, 750?, EP, 18K The plastic body has the markings: omas extra The metal parts are dull, but polishing them may cause scratches, so I am selling it as is. There is no ink, so it is unknown whether it can write. I received this from a relative over 10 years ago, so the details are unknown. It is unclear whether the instructions are for this fountain pen.