Tikky Graphic Pen by Rotring of Germany - Brushes and More
Amazon.com : Rotring 600 3-in-1 Multicolor Pen and Mechanical Pencil, Switches Between 2 Ballpoint Pen Fine Point Tips (Black and Red Ink) and 1 Mechanical Pencil Tip (0.5mm Lead), Silver Barrel : Office Products
Vintage rOtring Technical Pen (Variant) 1.20 mm - New with key nib Art. 110 120 | eBay