About This Pen: This Montblanc Meisterstuck Classique M145 Pen has a fountain pen with piston converter writing system. It features a black precious resin barrel, complemented by a cap that is also made of black precious resin inlaid with a Montblanc emblem. Both clip and fittings are gold-plated. The three gold-plated rings on the cap is embossed with the Montblanc brand name. The nib is made out of 14K gold rhodium-plated inlay and is hand-crafted by Montblanc. The following Nib Width are available: Identification No. Nib Widths 01516 – 106511 EF 01517 – 106513 F 01518 – 106514 M 01519 – 106515 B 01520 – 106516 BB 01521 – 106517 OM 01522 – 106518 OB 01523 – 106519 OBB