Montblanc No. 280 Ballpoint Pen is a vintage Montblanc model distinguished by its distinctive side-lever (clip-activated) mechanism, rather than a push-button or twist action. The pen features a streamlined, understated design typical of Montblanc’s mid-20th-century writing instruments, with a smooth resin body and restrained metal accents. The lever integrated near the clip extends and retracts the refill with a precise, mechanical feel, making the No. 280 both an interesting technical variant and a collectible example of Montblanc’s experimentation in ballpoint design. The pen is in good, used condition, with light scratches and other signs of use.