I previously reviewed the Kaweco Brass Sport pen Here and Kaweco Summer Purple ink was the ink I used in that pen when I reviewed it. This is a separate review for Kaweco Summer Purple ink. This is the latest shade of purple from Kaweco. Their previous purple ink was called Aubergine Purple and came in a brighter purple box. You might still find some older bottles of Kaweco Aubergine Purple ink. You can tell if you have one of the newest bottles because the name of the ink is now printed on the box. It's also on the cartridge packs and Kaweco branding is now on each cartridge. Kaweco Summer Purple is a bright purple ink that fits it's name quite nicely. It flowed well across the page and lubricated the nib of the Kaweco Brass Sport nicely. It's a good quality ink. This ink is water based, and isn't waterproof. It's quite water resistant though. It doesn't stain fingers. Kaweco ink is made in Germany. It is available in 30ml bottles or packs containing 6 standard international sized cartridges.