About This Pen: This Montblanc Solitaire M23773 Pen has a piston fountain pen writing system. It features a platinum-plated barrel with surface of rectangular facets, complemented by a cap that is also platinum-plated. Both clip and fittings are platinum-plated. The three platinum-plated rings on the cap is embossed with the Montblanc brand name. The nib is made out of 18K cgold with rhodium-plated inlay and is hand-crafted by Montblanc. The following Nib Width are available: Identification No. Nib Widths38243 EF 38244 F 38245 M 38246 B