The MP1 is the first internal piston fountain pen ever produced by Monteverde USA. Released as part of Monteverde’s 25th-anniversary celebration, the MP1 represents a significant leap forward for fountain pens in its class. Featuring innovative Lock-ItTM piston technology that tightly secures the piston knob between fillings, the MP1 is distinguished by its durable anodized aluminum cap and radiant crystal-clear barrel. Fitted with a German-made #6 JoWo nib, each pen delivers consistent, reliable ink flow regardless of your writing speed or style.