TWSBI DIAMOND 580 FOUNTAIN PEN
This rarely used TWSBI in their rainbow color is a gorgeous daily writer. The nib is size medium . If you are a TWSBI LOVER, this pen is for you. It uses the piston filler mechanism, and holds a lot of ink for a lot of writing/journaling!Since there is no category for TWSBI on the pre-selected brand names, I am leaving listed as “no brand”.