Kaweco Collection Liliput Kolibri Limited Edition Fountain PenThe fountain pen of the Liliput series is one of our smallest writing instruments. Concerning its color, the stainless steel body is equally as striking as the mesmerizingly shining plumage of different hummingbird species. They get their colorful appearance due to the surface structure of their feathers, known as the phenomenon of interference, where light is reflected. Reminiscent of this play of color, our Kaweco Collection Liliput Kolibri gets its