Kaweco Collection blue fountain pen with a dedicated case. - Brand: Kaweco - Model Name: Kaweco Collection - Color: Blue - Accessories: Dedicated case Thank you for viewing. This is a German fountain pen, and the ink is dark blue. It has only been used for a test write, so it's almost unused. Because the fountain pen was left on a desk for a while, there are some minor, barely noticeable scratches. I've decided to sell it because I haven't used it.