The other day, somebody noticed the patina on my kaweco brass sport and he was so amazed by the pattern formed on the brass body. Now when…

Patina on Kaweco Brass Sport after about 1 year of use, I can't remember what it looked like new. : r/fountainpens

Kaweco Brass FP, speed up brass patina - Pen Turning and Making - The Fountain Pen Network

Pen Review: Kaweco Brass Sport — the desk of lori

Stonewashed' Sport Aluminum Fountain Pen by Kaweco - Blue / Extra Fine Amusespot - Unique products by Kaweco for Kitchen, Home Décor, Barware, Living, and Spa …

Cult Pens writerlywitterings

Kaweco Bronze Sport Patina : r/fountainpens

Fountain Pens Quieter Elephant

Cult Pens writerlywitterings

Kaweco Brass Patina / Oxidation at about 20 months : r/fountainpens

Kirsten pipes