Writing System: Fountain pen with piston converter (allows optional use of ink cartridges) Nib: Hand-crafted 14 K gold nib Barrel: Burgundy precious resin Cap: Burgundy precious resin inlaid with Montblanc emblem Trim: Three gold-plated rings embossed with the Montblanc brand name Clip: Gold-plated clip specifying country of manufacturing origin (W. Germany or Germany), and individual serial number (post-1991 production) .