Opus 88 Omar Purple fountain pen
The Opus 88 Omar Demonstrator is a sturdy fountain pen made of clear transparent acrylic (length closed 150 mm). The pen is equipped with a stainless steel # 6 JoWo nib available in different line widths, the other details are matte black. The pen should be filled with the supplied pipette (so-called eyedropper), as in some Japanese fountain pens are common. Attached to the rear cap is a rod in the barrel with a gasket on the other end that separates the ink guide and reservoir. Slightly loosening the back knob allows the ink guide to be supplied with ink. Tightened again, the two compartments are separated and the large ink supply (over 3 ml) is safely stored. Since 1988, as an OEM supplier, Opus has been producing vital parts for various other stationery manufacturers. In 2017 it was decided to release pens under its own label under the brand name "Opus 88".