Opus 88 Picnic green fountain pen
The Opus 88 Picnic fountain pen is available in 4 colors, the barrel and cap are completely transparent.
The pen must be filled with the included pipette (so-called eyedropper), as is common in some Japanese fountain pens. Connected to the rear cap, there is a rod in the holder with a gasket inside at the other end to separate the ink guide and reservoir. Slightly loosening the rear knob allows the ink guide to be supplied with ink. Tightened again, the two compartments are separated and the large ink supply (approx. 2 ml) is safely stored.
Since 1988, Opus has been producing vital parts for various other stationery manufacturers as an OEM supplier. In 2017 it was decided to release pens under their own label under the brand name Opus 88.