Kaweco Brass Sport Gel/ballpoint Pen Including 0.7 Mm Rollerball Pen Refill, Made From Brown Brass And Measures 13 Cm. - Gel Pens - AliExpress
Only had my Kaweco Brass Sport for a day and it oxidized quite fast, decided to give the two a polish and start getting the patina from there. : r/fountainpens